Home / 5,453.12-8,178.50-2,490.73

Finding the Fourth Proportional to 5,453.12, 8,178.50 and 2,490.73

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Solution

The fourth proportional to 5,453.12, 8,178.50 and 2,490.73 is: 3,735.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.12 : 8,178.50 = 2,490.73 : x
  2. Step 2: Convert to fraction form
    5,453.12/8,178.50 = 2,490.73/x
  3. Step 3: Cross multiply
    5,453.12x = 8,178.50 × 2,490.73
  4. Step 4: Simplify right side
    5,453.12x = 20,370,421.09
  5. Step 5: Solve for x
    x = 20,370,421.09/5,453.12
  6. Step 6: Final answer
    x = 3,735.55

Related Problems

Find fourth proportional to 2,726.56, 4,089.25 and 1,245.36
Half scale
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Double scale
Find fourth proportional to 5,454.12, 8,180 and 2,491.73
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.