Home / 2,373.20-3,557.92-1,640.64

Finding the Fourth Proportional to 2,373.20, 3,557.92 and 1,640.64

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Solution

The fourth proportional to 2,373.20, 3,557.92 and 1,640.64 is: 2,459.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,373.20 : 3,557.92 = 1,640.64 : x
  2. Step 2: Convert to fraction form
    2,373.20/3,557.92 = 1,640.64/x
  3. Step 3: Cross multiply
    2,373.20x = 3,557.92 × 1,640.64
  4. Step 4: Simplify right side
    2,373.20x = 5,837,265.87
  5. Step 5: Solve for x
    x = 5,837,265.87/2,373.20
  6. Step 6: Final answer
    x = 2,459.66

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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.