Home / 1,724.80-2,378.82-1,025.50

Finding the Fourth Proportional to 1,724.80, 2,378.82 and 1,025.50

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Solution

The fourth proportional to 1,724.80, 2,378.82 and 1,025.50 is: 1,414.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.80 : 2,378.82 = 1,025.50 : x
  2. Step 2: Convert to fraction form
    1,724.80/2,378.82 = 1,025.50/x
  3. Step 3: Cross multiply
    1,724.80x = 2,378.82 × 1,025.50
  4. Step 4: Simplify right side
    1,724.80x = 2,439,479.91
  5. Step 5: Solve for x
    x = 2,439,479.91/1,724.80
  6. Step 6: Final answer
    x = 1,414.36

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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.