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Finding the Fourth Proportional to 5,491.80, 8,235.88 and 1,595.30

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Solution

The fourth proportional to 5,491.80, 8,235.88 and 1,595.30 is: 2,392.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.80 : 8,235.88 = 1,595.30 : x
  2. Step 2: Convert to fraction form
    5,491.80/8,235.88 = 1,595.30/x
  3. Step 3: Cross multiply
    5,491.80x = 8,235.88 × 1,595.30
  4. Step 4: Simplify right side
    5,491.80x = 13,138,654.20
  5. Step 5: Solve for x
    x = 13,138,654.20/5,491.80
  6. Step 6: Final answer
    x = 2,392.41

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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.