Home / 7,534.40-11,301.72-1,988.31

Finding the Fourth Proportional to 7,534.40, 11,301.72 and 1,988.31

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Solution

The fourth proportional to 7,534.40, 11,301.72 and 1,988.31 is: 2,982.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,534.40 : 11,301.72 = 1,988.31 : x
  2. Step 2: Convert to fraction form
    7,534.40/11,301.72 = 1,988.31/x
  3. Step 3: Cross multiply
    7,534.40x = 11,301.72 × 1,988.31
  4. Step 4: Simplify right side
    7,534.40x = 22,471,322.89
  5. Step 5: Solve for x
    x = 22,471,322.89/7,534.40
  6. Step 6: Final answer
    x = 2,982.50

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Double scale
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Similar ratio
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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.