Home / 3,621.25-5,432.42-1,313.29

Finding the Fourth Proportional to 3,621.25, 5,432.42 and 1,313.29

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Solution

The fourth proportional to 3,621.25, 5,432.42 and 1,313.29 is: 1,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.25 : 5,432.42 = 1,313.29 : x
  2. Step 2: Convert to fraction form
    3,621.25/5,432.42 = 1,313.29/x
  3. Step 3: Cross multiply
    3,621.25x = 5,432.42 × 1,313.29
  4. Step 4: Simplify right side
    3,621.25x = 7,134,342.86
  5. Step 5: Solve for x
    x = 7,134,342.86/3,621.25
  6. Step 6: Final answer
    x = 1,970.13

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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.