Home / 4,161.47-6,239.60-1,387.43

Finding the Fourth Proportional to 4,161.47, 6,239.60 and 1,387.43

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Solution

The fourth proportional to 4,161.47, 6,239.60 and 1,387.43 is: 2,080.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,161.47 : 6,239.60 = 1,387.43 : x
  2. Step 2: Convert to fraction form
    4,161.47/6,239.60 = 1,387.43/x
  3. Step 3: Cross multiply
    4,161.47x = 6,239.60 × 1,387.43
  4. Step 4: Simplify right side
    4,161.47x = 8,656,970.09
  5. Step 5: Solve for x
    x = 8,656,970.09/4,161.47
  6. Step 6: Final answer
    x = 2,080.27

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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.