Home / 3,748.32-5,171.85-2,154.87

Finding the Fourth Proportional to 3,748.32, 5,171.85 and 2,154.87

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Solution

The fourth proportional to 3,748.32, 5,171.85 and 2,154.87 is: 2,973.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.32 : 5,171.85 = 2,154.87 : x
  2. Step 2: Convert to fraction form
    3,748.32/5,171.85 = 2,154.87/x
  3. Step 3: Cross multiply
    3,748.32x = 5,171.85 × 2,154.87
  4. Step 4: Simplify right side
    3,748.32x = 11,144,664.41
  5. Step 5: Solve for x
    x = 11,144,664.41/3,748.32
  6. Step 6: Final answer
    x = 2,973.24

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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.