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Finding the Fourth Proportional to 5,456.58, 7,530.12 and 2,972.58

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Solution

The fourth proportional to 5,456.58, 7,530.12 and 2,972.58 is: 4,102.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.58 : 7,530.12 = 2,972.58 : x
  2. Step 2: Convert to fraction form
    5,456.58/7,530.12 = 2,972.58/x
  3. Step 3: Cross multiply
    5,456.58x = 7,530.12 × 2,972.58
  4. Step 4: Simplify right side
    5,456.58x = 22,383,884.11
  5. Step 5: Solve for x
    x = 22,383,884.11/5,456.58
  6. Step 6: Final answer
    x = 4,102.18

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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.