Home / 5,439.15-7,507.07-3,081.24

Finding the Fourth Proportional to 5,439.15, 7,507.07 and 3,081.24

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Solution

The fourth proportional to 5,439.15, 7,507.07 and 3,081.24 is: 4,252.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.15 : 7,507.07 = 3,081.24 : x
  2. Step 2: Convert to fraction form
    5,439.15/7,507.07 = 3,081.24/x
  3. Step 3: Cross multiply
    5,439.15x = 7,507.07 × 3,081.24
  4. Step 4: Simplify right side
    5,439.15x = 23,131,068.96
  5. Step 5: Solve for x
    x = 23,131,068.96/5,439.15
  6. Step 6: Final answer
    x = 4,252.70

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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.