Home / 5,114.43-7,058.61-2,990.61

Finding the Fourth Proportional to 5,114.43, 7,058.61 and 2,990.61

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Solution

The fourth proportional to 5,114.43, 7,058.61 and 2,990.61 is: 4,127.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.43 : 7,058.61 = 2,990.61 : x
  2. Step 2: Convert to fraction form
    5,114.43/7,058.61 = 2,990.61/x
  3. Step 3: Cross multiply
    5,114.43x = 7,058.61 × 2,990.61
  4. Step 4: Simplify right side
    5,114.43x = 21,109,549.65
  5. Step 5: Solve for x
    x = 21,109,549.65/5,114.43
  6. Step 6: Final answer
    x = 4,127.45

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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.