Home / 1,432.15-2,146.20-882.70

Finding the Fourth Proportional to 1,432.15, 2,146.20 and 882.70

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Solution

The fourth proportional to 1,432.15, 2,146.20 and 882.70 is: 1,322.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432.15 : 2,146.20 = 882.70 : x
  2. Step 2: Convert to fraction form
    1,432.15/2,146.20 = 882.70/x
  3. Step 3: Cross multiply
    1,432.15x = 2,146.20 × 882.70
  4. Step 4: Simplify right side
    1,432.15x = 1,894,450.74
  5. Step 5: Solve for x
    x = 1,894,450.74/1,432.15
  6. Step 6: Final answer
    x = 1,322.80

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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.