Home / 7,810.48-10,778.75-4,453.84

Finding the Fourth Proportional to 7,810.48, 10,778.75 and 4,453.84

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Solution

The fourth proportional to 7,810.48, 10,778.75 and 4,453.84 is: 6,146.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,810.48 : 10,778.75 = 4,453.84 : x
  2. Step 2: Convert to fraction form
    7,810.48/10,778.75 = 4,453.84/x
  3. Step 3: Cross multiply
    7,810.48x = 10,778.75 × 4,453.84
  4. Step 4: Simplify right side
    7,810.48x = 48,006,827.90
  5. Step 5: Solve for x
    x = 48,006,827.90/7,810.48
  6. Step 6: Final answer
    x = 6,146.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.