Home / 7,342.24-10,132.20-3,985.06

Finding the Fourth Proportional to 7,342.24, 10,132.20 and 3,985.06

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Solution

The fourth proportional to 7,342.24, 10,132.20 and 3,985.06 is: 5,499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.24 : 10,132.20 = 3,985.06 : x
  2. Step 2: Convert to fraction form
    7,342.24/10,132.20 = 3,985.06/x
  3. Step 3: Cross multiply
    7,342.24x = 10,132.20 × 3,985.06
  4. Step 4: Simplify right side
    7,342.24x = 40,377,424.93
  5. Step 5: Solve for x
    x = 40,377,424.93/7,342.24
  6. Step 6: Final answer
    x = 5,499.33

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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.