Home / 5,332.20-7,358.40-2,974.20

Finding the Fourth Proportional to 5,332.20, 7,358.40 and 2,974.20

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Solution

The fourth proportional to 5,332.20, 7,358.40 and 2,974.20 is: 4,104.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,332.20 : 7,358.40 = 2,974.20 : x
  2. Step 2: Convert to fraction form
    5,332.20/7,358.40 = 2,974.20/x
  3. Step 3: Cross multiply
    5,332.20x = 7,358.40 × 2,974.20
  4. Step 4: Simplify right side
    5,332.20x = 21,885,353.28
  5. Step 5: Solve for x
    x = 21,885,353.28/5,332.20
  6. Step 6: Final answer
    x = 4,104.38

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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.