Home / 1,744.47-2,404.89-1,387.26

Finding the Fourth Proportional to 1,744.47, 2,404.89 and 1,387.26

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Solution

The fourth proportional to 1,744.47, 2,404.89 and 1,387.26 is: 1,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,744.47 : 2,404.89 = 1,387.26 : x
  2. Step 2: Convert to fraction form
    1,744.47/2,404.89 = 1,387.26/x
  3. Step 3: Cross multiply
    1,744.47x = 2,404.89 × 1,387.26
  4. Step 4: Simplify right side
    1,744.47x = 3,336,207.70
  5. Step 5: Solve for x
    x = 3,336,207.70/1,744.47
  6. Step 6: Final answer
    x = 1,912.45

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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.