Home / 3,621.96-5,432.58-1,281.72

Finding the Fourth Proportional to 3,621.96, 5,432.58 and 1,281.72

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Solution

The fourth proportional to 3,621.96, 5,432.58 and 1,281.72 is: 1,922.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.96 : 5,432.58 = 1,281.72 : x
  2. Step 2: Convert to fraction form
    3,621.96/5,432.58 = 1,281.72/x
  3. Step 3: Cross multiply
    3,621.96x = 5,432.58 × 1,281.72
  4. Step 4: Simplify right side
    3,621.96x = 6,963,046.44
  5. Step 5: Solve for x
    x = 6,963,046.44/3,621.96
  6. Step 6: Final answer
    x = 1,922.45

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1.5x scale

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.