Home / 3,646.40-5,469.76-1,337.28

Finding the Fourth Proportional to 3,646.40, 5,469.76 and 1,337.28

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Solution

The fourth proportional to 3,646.40, 5,469.76 and 1,337.28 is: 2,005.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,646.40 : 5,469.76 = 1,337.28 : x
  2. Step 2: Convert to fraction form
    3,646.40/5,469.76 = 1,337.28/x
  3. Step 3: Cross multiply
    3,646.40x = 5,469.76 × 1,337.28
  4. Step 4: Simplify right side
    3,646.40x = 7,314,600.65
  5. Step 5: Solve for x
    x = 7,314,600.65/3,646.40
  6. Step 6: Final answer
    x = 2,005.98

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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.