Home / 5,439.17-8,145.99-2,657.13

Finding the Fourth Proportional to 5,439.17, 8,145.99 and 2,657.13

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Solution

The fourth proportional to 5,439.17, 8,145.99 and 2,657.13 is: 3,979.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.17 : 8,145.99 = 2,657.13 : x
  2. Step 2: Convert to fraction form
    5,439.17/8,145.99 = 2,657.13/x
  3. Step 3: Cross multiply
    5,439.17x = 8,145.99 × 2,657.13
  4. Step 4: Simplify right side
    5,439.17x = 21,644,954.41
  5. Step 5: Solve for x
    x = 21,644,954.41/5,439.17
  6. Step 6: Final answer
    x = 3,979.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.