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Finding the Fourth Proportional to 1,658.60, 2,479.90 and 1,417.96

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Solution

The fourth proportional to 1,658.60, 2,479.90 and 1,417.96 is: 2,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658.60 : 2,479.90 = 1,417.96 : x
  2. Step 2: Convert to fraction form
    1,658.60/2,479.90 = 1,417.96/x
  3. Step 3: Cross multiply
    1,658.60x = 2,479.90 × 1,417.96
  4. Step 4: Simplify right side
    1,658.60x = 3,516,399.00
  5. Step 5: Solve for x
    x = 3,516,399.00/1,658.60
  6. Step 6: Final answer
    x = 2,120.10

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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.