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Finding the Fourth Proportional to 2,458.35, 3,686.85 and 898.07

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Solution

The fourth proportional to 2,458.35, 3,686.85 and 898.07 is: 1,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,458.35 : 3,686.85 = 898.07 : x
  2. Step 2: Convert to fraction form
    2,458.35/3,686.85 = 898.07/x
  3. Step 3: Cross multiply
    2,458.35x = 3,686.85 × 898.07
  4. Step 4: Simplify right side
    2,458.35x = 3,311,030.95
  5. Step 5: Solve for x
    x = 3,311,030.95/2,458.35
  6. Step 6: Final answer
    x = 1,346.85

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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.