Home / 5,389.13-7,436.95-2,999.12

Finding the Fourth Proportional to 5,389.13, 7,436.95 and 2,999.12

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Solution

The fourth proportional to 5,389.13, 7,436.95 and 2,999.12 is: 4,138.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.13 : 7,436.95 = 2,999.12 : x
  2. Step 2: Convert to fraction form
    5,389.13/7,436.95 = 2,999.12/x
  3. Step 3: Cross multiply
    5,389.13x = 7,436.95 × 2,999.12
  4. Step 4: Simplify right side
    5,389.13x = 22,304,260.80
  5. Step 5: Solve for x
    x = 22,304,260.80/5,389.13
  6. Step 6: Final answer
    x = 4,138.75

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1.5x scale

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.