Home / 3,992.40-5,988.98-1,529.28

Finding the Fourth Proportional to 3,992.40, 5,988.98 and 1,529.28

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Solution

The fourth proportional to 3,992.40, 5,988.98 and 1,529.28 is: 2,294.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.40 : 5,988.98 = 1,529.28 : x
  2. Step 2: Convert to fraction form
    3,992.40/5,988.98 = 1,529.28/x
  3. Step 3: Cross multiply
    3,992.40x = 5,988.98 × 1,529.28
  4. Step 4: Simplify right side
    3,992.40x = 9,158,831.16
  5. Step 5: Solve for x
    x = 9,158,831.16/3,992.40
  6. Step 6: Final answer
    x = 2,294.07

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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.