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Finding the Fourth Proportional to 1,658.96, 2,290.08 and 1,099.70

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Solution

The fourth proportional to 1,658.96, 2,290.08 and 1,099.70 is: 1,518.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658.96 : 2,290.08 = 1,099.70 : x
  2. Step 2: Convert to fraction form
    1,658.96/2,290.08 = 1,099.70/x
  3. Step 3: Cross multiply
    1,658.96x = 2,290.08 × 1,099.70
  4. Step 4: Simplify right side
    1,658.96x = 2,518,389.53
  5. Step 5: Solve for x
    x = 2,518,389.53/1,658.96
  6. Step 6: Final answer
    x = 1,518.06

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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.