Home / 7,332.56-11,001.36-2,139.20

Finding the Fourth Proportional to 7,332.56, 11,001.36 and 2,139.20

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Solution

The fourth proportional to 7,332.56, 11,001.36 and 2,139.20 is: 3,209.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,332.56 : 11,001.36 = 2,139.20 : x
  2. Step 2: Convert to fraction form
    7,332.56/11,001.36 = 2,139.20/x
  3. Step 3: Cross multiply
    7,332.56x = 11,001.36 × 2,139.20
  4. Step 4: Simplify right side
    7,332.56x = 23,534,109.31
  5. Step 5: Solve for x
    x = 23,534,109.31/7,332.56
  6. Step 6: Final answer
    x = 3,209.54

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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.