Home / 1,432.40-2,144.74-746.96

Finding the Fourth Proportional to 1,432.40, 2,144.74 and 746.96

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Solution

The fourth proportional to 1,432.40, 2,144.74 and 746.96 is: 1,118.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432.40 : 2,144.74 = 746.96 : x
  2. Step 2: Convert to fraction form
    1,432.40/2,144.74 = 746.96/x
  3. Step 3: Cross multiply
    1,432.40x = 2,144.74 × 746.96
  4. Step 4: Simplify right side
    1,432.40x = 1,602,034.99
  5. Step 5: Solve for x
    x = 1,602,034.99/1,432.40
  6. Step 6: Final answer
    x = 1,118.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.