Home / 4,772.16-7,158.24-1,310.40

Finding the Fourth Proportional to 4,772.16, 7,158.24 and 1,310.40

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Solution

The fourth proportional to 4,772.16, 7,158.24 and 1,310.40 is: 1,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,772.16 : 7,158.24 = 1,310.40 : x
  2. Step 2: Convert to fraction form
    4,772.16/7,158.24 = 1,310.40/x
  3. Step 3: Cross multiply
    4,772.16x = 7,158.24 × 1,310.40
  4. Step 4: Simplify right side
    4,772.16x = 9,380,157.70
  5. Step 5: Solve for x
    x = 9,380,157.70/4,772.16
  6. Step 6: Final answer
    x = 1,965.60

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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.