Home / 3,756.64-5,181.12-2,871.04

Finding the Fourth Proportional to 3,756.64, 5,181.12 and 2,871.04

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Solution

The fourth proportional to 3,756.64, 5,181.12 and 2,871.04 is: 3,959.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756.64 : 5,181.12 = 2,871.04 : x
  2. Step 2: Convert to fraction form
    3,756.64/5,181.12 = 2,871.04/x
  3. Step 3: Cross multiply
    3,756.64x = 5,181.12 × 2,871.04
  4. Step 4: Simplify right side
    3,756.64x = 14,875,202.76
  5. Step 5: Solve for x
    x = 14,875,202.76/3,756.64
  6. Step 6: Final answer
    x = 3,959.71

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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.