Home / 5,386.62-8,079.68-1,877.42

Finding the Fourth Proportional to 5,386.62, 8,079.68 and 1,877.42

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Solution

The fourth proportional to 5,386.62, 8,079.68 and 1,877.42 is: 2,816.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.62 : 8,079.68 = 1,877.42 : x
  2. Step 2: Convert to fraction form
    5,386.62/8,079.68 = 1,877.42/x
  3. Step 3: Cross multiply
    5,386.62x = 8,079.68 × 1,877.42
  4. Step 4: Simplify right side
    5,386.62x = 15,168,952.83
  5. Step 5: Solve for x
    x = 15,168,952.83/5,386.62
  6. Step 6: Final answer
    x = 2,816.04

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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.