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Finding the Fourth Proportional to 1,494.59, 2,230.58 and 1,455.71

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Solution

The fourth proportional to 1,494.59, 2,230.58 and 1,455.71 is: 2,172.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,494.59 : 2,230.58 = 1,455.71 : x
  2. Step 2: Convert to fraction form
    1,494.59/2,230.58 = 1,455.71/x
  3. Step 3: Cross multiply
    1,494.59x = 2,230.58 × 1,455.71
  4. Step 4: Simplify right side
    1,494.59x = 3,247,061.91
  5. Step 5: Solve for x
    x = 3,247,061.91/1,494.59
  6. Step 6: Final answer
    x = 2,172.55

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.