Home / 4,827.12-7,240.80-1,540.80

Finding the Fourth Proportional to 4,827.12, 7,240.80 and 1,540.80

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Solution

The fourth proportional to 4,827.12, 7,240.80 and 1,540.80 is: 2,311.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,827.12 : 7,240.80 = 1,540.80 : x
  2. Step 2: Convert to fraction form
    4,827.12/7,240.80 = 1,540.80/x
  3. Step 3: Cross multiply
    4,827.12x = 7,240.80 × 1,540.80
  4. Step 4: Simplify right side
    4,827.12x = 11,156,624.64
  5. Step 5: Solve for x
    x = 11,156,624.64/4,827.12
  6. Step 6: Final answer
    x = 2,311.24

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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.