Home / 6,931.60-10,398-2,549.20

Finding the Fourth Proportional to 6,931.60, 10,398 and 2,549.20

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Solution

The fourth proportional to 6,931.60, 10,398 and 2,549.20 is: 3,824.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.60 : 10,398 = 2,549.20 : x
  2. Step 2: Convert to fraction form
    6,931.60/10,398 = 2,549.20/x
  3. Step 3: Cross multiply
    6,931.60x = 10,398 × 2,549.20
  4. Step 4: Simplify right side
    6,931.60x = 26,506,581.60
  5. Step 5: Solve for x
    x = 26,506,581.60/6,931.60
  6. Step 6: Final answer
    x = 3,824.02

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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.