Home / 1,432.71-1,976.99-1,059.90

Finding the Fourth Proportional to 1,432.71, 1,976.99 and 1,059.90

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Solution

The fourth proportional to 1,432.71, 1,976.99 and 1,059.90 is: 1,462.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432.71 : 1,976.99 = 1,059.90 : x
  2. Step 2: Convert to fraction form
    1,432.71/1,976.99 = 1,059.90/x
  3. Step 3: Cross multiply
    1,432.71x = 1,976.99 × 1,059.90
  4. Step 4: Simplify right side
    1,432.71x = 2,095,406.40
  5. Step 5: Solve for x
    x = 2,095,406.40/1,432.71
  6. Step 6: Final answer
    x = 1,462.55

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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.