Home / 5,187.92-7,159.28-2,830.04

Finding the Fourth Proportional to 5,187.92, 7,159.28 and 2,830.04

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Solution

The fourth proportional to 5,187.92, 7,159.28 and 2,830.04 is: 3,905.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.92 : 7,159.28 = 2,830.04 : x
  2. Step 2: Convert to fraction form
    5,187.92/7,159.28 = 2,830.04/x
  3. Step 3: Cross multiply
    5,187.92x = 7,159.28 × 2,830.04
  4. Step 4: Simplify right side
    5,187.92x = 20,261,048.77
  5. Step 5: Solve for x
    x = 20,261,048.77/5,187.92
  6. Step 6: Final answer
    x = 3,905.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.