Home / 3,747.32-5,171.58-2,154.22

Finding the Fourth Proportional to 3,747.32, 5,171.58 and 2,154.22

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Solution

The fourth proportional to 3,747.32, 5,171.58 and 2,154.22 is: 2,972.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.32 : 5,171.58 = 2,154.22 : x
  2. Step 2: Convert to fraction form
    3,747.32/5,171.58 = 2,154.22/x
  3. Step 3: Cross multiply
    3,747.32x = 5,171.58 × 2,154.22
  4. Step 4: Simplify right side
    3,747.32x = 11,140,721.07
  5. Step 5: Solve for x
    x = 11,140,721.07/3,747.32
  6. Step 6: Final answer
    x = 2,972.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.