Home / 1,724.34-2,378.58-1,251.69

Finding the Fourth Proportional to 1,724.34, 2,378.58 and 1,251.69

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Solution

The fourth proportional to 1,724.34, 2,378.58 and 1,251.69 is: 1,726.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.34 : 2,378.58 = 1,251.69 : x
  2. Step 2: Convert to fraction form
    1,724.34/2,378.58 = 1,251.69/x
  3. Step 3: Cross multiply
    1,724.34x = 2,378.58 × 1,251.69
  4. Step 4: Simplify right side
    1,724.34x = 2,977,244.80
  5. Step 5: Solve for x
    x = 2,977,244.80/1,724.34
  6. Step 6: Final answer
    x = 1,726.60

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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.