Home / 7,931.28-10,937.16-4,785.60

Finding the Fourth Proportional to 7,931.28, 10,937.16 and 4,785.60

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Solution

The fourth proportional to 7,931.28, 10,937.16 and 4,785.60 is: 6,599.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.28 : 10,937.16 = 4,785.60 : x
  2. Step 2: Convert to fraction form
    7,931.28/10,937.16 = 4,785.60/x
  3. Step 3: Cross multiply
    7,931.28x = 10,937.16 × 4,785.60
  4. Step 4: Simplify right side
    7,931.28x = 52,340,872.90
  5. Step 5: Solve for x
    x = 52,340,872.90/7,931.28
  6. Step 6: Final answer
    x = 6,599.30

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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.