Home / 2,432.10-3,652.55-2,129.70

Finding the Fourth Proportional to 2,432.10, 3,652.55 and 2,129.70

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Solution

The fourth proportional to 2,432.10, 3,652.55 and 2,129.70 is: 3,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,432.10 : 3,652.55 = 2,129.70 : x
  2. Step 2: Convert to fraction form
    2,432.10/3,652.55 = 2,129.70/x
  3. Step 3: Cross multiply
    2,432.10x = 3,652.55 × 2,129.70
  4. Step 4: Simplify right side
    2,432.10x = 7,778,835.74
  5. Step 5: Solve for x
    x = 7,778,835.74/2,432.10
  6. Step 6: Final answer
    x = 3,198.40

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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.