Home / 3,621.49-5,432.66-1,281.01

Finding the Fourth Proportional to 3,621.49, 5,432.66 and 1,281.01

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Solution

The fourth proportional to 3,621.49, 5,432.66 and 1,281.01 is: 1,921.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.49 : 5,432.66 = 1,281.01 : x
  2. Step 2: Convert to fraction form
    3,621.49/5,432.66 = 1,281.01/x
  3. Step 3: Cross multiply
    3,621.49x = 5,432.66 × 1,281.01
  4. Step 4: Simplify right side
    3,621.49x = 6,959,285.38
  5. Step 5: Solve for x
    x = 6,959,285.38/3,621.49
  6. Step 6: Final answer
    x = 1,921.66

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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.