Home / 1,621.68-2,432.55-800.02

Finding the Fourth Proportional to 1,621.68, 2,432.55 and 800.02

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Solution

The fourth proportional to 1,621.68, 2,432.55 and 800.02 is: 1,200.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.68 : 2,432.55 = 800.02 : x
  2. Step 2: Convert to fraction form
    1,621.68/2,432.55 = 800.02/x
  3. Step 3: Cross multiply
    1,621.68x = 2,432.55 × 800.02
  4. Step 4: Simplify right side
    1,621.68x = 1,946,083.35
  5. Step 5: Solve for x
    x = 1,946,083.35/1,621.68
  6. Step 6: Final answer
    x = 1,200.04

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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.