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Finding the Fourth Proportional to 5,648.16, 8,472.29 and 1,488.76

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Solution

The fourth proportional to 5,648.16, 8,472.29 and 1,488.76 is: 2,233.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,648.16 : 8,472.29 = 1,488.76 : x
  2. Step 2: Convert to fraction form
    5,648.16/8,472.29 = 1,488.76/x
  3. Step 3: Cross multiply
    5,648.16x = 8,472.29 × 1,488.76
  4. Step 4: Simplify right side
    5,648.16x = 12,613,206.46
  5. Step 5: Solve for x
    x = 12,613,206.46/5,648.16
  6. Step 6: Final answer
    x = 2,233.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.