Home / 1,725.47-2,381.15-939.52

Finding the Fourth Proportional to 1,725.47, 2,381.15 and 939.52

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Solution

The fourth proportional to 1,725.47, 2,381.15 and 939.52 is: 1,296.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,725.47 : 2,381.15 = 939.52 : x
  2. Step 2: Convert to fraction form
    1,725.47/2,381.15 = 939.52/x
  3. Step 3: Cross multiply
    1,725.47x = 2,381.15 × 939.52
  4. Step 4: Simplify right side
    1,725.47x = 2,237,124.69
  5. Step 5: Solve for x
    x = 2,237,124.69/1,725.47
  6. Step 6: Final answer
    x = 1,296.53

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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.