Home / 5,127.23-7,688.12-2,655.92

Finding the Fourth Proportional to 5,127.23, 7,688.12 and 2,655.92

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Solution

The fourth proportional to 5,127.23, 7,688.12 and 2,655.92 is: 3,982.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.23 : 7,688.12 = 2,655.92 : x
  2. Step 2: Convert to fraction form
    5,127.23/7,688.12 = 2,655.92/x
  3. Step 3: Cross multiply
    5,127.23x = 7,688.12 × 2,655.92
  4. Step 4: Simplify right side
    5,127.23x = 20,419,031.67
  5. Step 5: Solve for x
    x = 20,419,031.67/5,127.23
  6. Step 6: Final answer
    x = 3,982.47

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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.