Home / 4,377.92-6,564.96-1,640

Finding the Fourth Proportional to 4,377.92, 6,564.96 and 1,640

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Solution

The fourth proportional to 4,377.92, 6,564.96 and 1,640 is: 2,459.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,377.92 : 6,564.96 = 1,640 : x
  2. Step 2: Convert to fraction form
    4,377.92/6,564.96 = 1,640/x
  3. Step 3: Cross multiply
    4,377.92x = 6,564.96 × 1,640
  4. Step 4: Simplify right side
    4,377.92x = 10,766,534.40
  5. Step 5: Solve for x
    x = 10,766,534.40/4,377.92
  6. Step 6: Final answer
    x = 2,459.28

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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.