Home / 4,160.36-6,239.94-1,387.02

Finding the Fourth Proportional to 4,160.36, 6,239.94 and 1,387.02

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Solution

The fourth proportional to 4,160.36, 6,239.94 and 1,387.02 is: 2,080.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,160.36 : 6,239.94 = 1,387.02 : x
  2. Step 2: Convert to fraction form
    4,160.36/6,239.94 = 1,387.02/x
  3. Step 3: Cross multiply
    4,160.36x = 6,239.94 × 1,387.02
  4. Step 4: Simplify right side
    4,160.36x = 8,654,939.78
  5. Step 5: Solve for x
    x = 8,654,939.78/4,160.36
  6. Step 6: Final answer
    x = 2,080.33

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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.