Home / 5,155.92-7,115.04-3,060

Finding the Fourth Proportional to 5,155.92, 7,115.04 and 3,060

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Solution

The fourth proportional to 5,155.92, 7,115.04 and 3,060 is: 4,222.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.92 : 7,115.04 = 3,060 : x
  2. Step 2: Convert to fraction form
    5,155.92/7,115.04 = 3,060/x
  3. Step 3: Cross multiply
    5,155.92x = 7,115.04 × 3,060
  4. Step 4: Simplify right side
    5,155.92x = 21,772,022.40
  5. Step 5: Solve for x
    x = 21,772,022.40/5,155.92
  6. Step 6: Final answer
    x = 4,222.72

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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.