Home / 6,931.96-9,566.28-3,788.20

Finding the Fourth Proportional to 6,931.96, 9,566.28 and 3,788.20

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Solution

The fourth proportional to 6,931.96, 9,566.28 and 3,788.20 is: 5,227.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.96 : 9,566.28 = 3,788.20 : x
  2. Step 2: Convert to fraction form
    6,931.96/9,566.28 = 3,788.20/x
  3. Step 3: Cross multiply
    6,931.96x = 9,566.28 × 3,788.20
  4. Step 4: Simplify right side
    6,931.96x = 36,238,981.90
  5. Step 5: Solve for x
    x = 36,238,981.90/6,931.96
  6. Step 6: Final answer
    x = 5,227.81

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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.