Home / 5,165.46-7,127.92-2,927.68

Finding the Fourth Proportional to 5,165.46, 7,127.92 and 2,927.68

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Solution

The fourth proportional to 5,165.46, 7,127.92 and 2,927.68 is: 4,039.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.46 : 7,127.92 = 2,927.68 : x
  2. Step 2: Convert to fraction form
    5,165.46/7,127.92 = 2,927.68/x
  3. Step 3: Cross multiply
    5,165.46x = 7,127.92 × 2,927.68
  4. Step 4: Simplify right side
    5,165.46x = 20,868,254.67
  5. Step 5: Solve for x
    x = 20,868,254.67/5,165.46
  6. Step 6: Final answer
    x = 4,039.96

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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.