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Finding the Fourth Proportional to 1,098.91, 1,516.50 and 601.55

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Solution

The fourth proportional to 1,098.91, 1,516.50 and 601.55 is: 830.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098.91 : 1,516.50 = 601.55 : x
  2. Step 2: Convert to fraction form
    1,098.91/1,516.50 = 601.55/x
  3. Step 3: Cross multiply
    1,098.91x = 1,516.50 × 601.55
  4. Step 4: Simplify right side
    1,098.91x = 912,254.37
  5. Step 5: Solve for x
    x = 912,254.37/1,098.91
  6. Step 6: Final answer
    x = 830.14

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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.