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Finding the Fourth Proportional to 5,603.60, 7,732.80 and 3,508.88

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Solution

The fourth proportional to 5,603.60, 7,732.80 and 3,508.88 is: 4,842.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,603.60 : 7,732.80 = 3,508.88 : x
  2. Step 2: Convert to fraction form
    5,603.60/7,732.80 = 3,508.88/x
  3. Step 3: Cross multiply
    5,603.60x = 7,732.80 × 3,508.88
  4. Step 4: Simplify right side
    5,603.60x = 27,133,467.26
  5. Step 5: Solve for x
    x = 27,133,467.26/5,603.60
  6. Step 6: Final answer
    x = 4,842.15

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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.