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Finding the Fourth Proportional to 3,154.31, 4,353.15 and 1,738.00

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Solution

The fourth proportional to 3,154.31, 4,353.15 and 1,738.00 is: 2,398.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.31 : 4,353.15 = 1,738.00 : x
  2. Step 2: Convert to fraction form
    3,154.31/4,353.15 = 1,738.00/x
  3. Step 3: Cross multiply
    3,154.31x = 4,353.15 × 1,738.00
  4. Step 4: Simplify right side
    3,154.31x = 7,565,759.47
  5. Step 5: Solve for x
    x = 7,565,759.47/3,154.31
  6. Step 6: Final answer
    x = 2,398.55

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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.