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Finding the Fourth Proportional to 2,458.18, 3,685.98 and 898.12

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Solution

The fourth proportional to 2,458.18, 3,685.98 and 898.12 is: 1,346.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,458.18 : 3,685.98 = 898.12 : x
  2. Step 2: Convert to fraction form
    2,458.18/3,685.98 = 898.12/x
  3. Step 3: Cross multiply
    2,458.18x = 3,685.98 × 898.12
  4. Step 4: Simplify right side
    2,458.18x = 3,310,433.93
  5. Step 5: Solve for x
    x = 3,310,433.93/2,458.18
  6. Step 6: Final answer
    x = 1,346.70

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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.