Home / 5,439.02-7,505.70-3,081.38

Finding the Fourth Proportional to 5,439.02, 7,505.70 and 3,081.38

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Solution

The fourth proportional to 5,439.02, 7,505.70 and 3,081.38 is: 4,252.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.02 : 7,505.70 = 3,081.38 : x
  2. Step 2: Convert to fraction form
    5,439.02/7,505.70 = 3,081.38/x
  3. Step 3: Cross multiply
    5,439.02x = 7,505.70 × 3,081.38
  4. Step 4: Simplify right side
    5,439.02x = 23,127,913.87
  5. Step 5: Solve for x
    x = 23,127,913.87/5,439.02
  6. Step 6: Final answer
    x = 4,252.22

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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.