Home / 5,261.13-7,260.12-2,871.05

Finding the Fourth Proportional to 5,261.13, 7,260.12 and 2,871.05

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Solution

The fourth proportional to 5,261.13, 7,260.12 and 2,871.05 is: 3,961.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.13 : 7,260.12 = 2,871.05 : x
  2. Step 2: Convert to fraction form
    5,261.13/7,260.12 = 2,871.05/x
  3. Step 3: Cross multiply
    5,261.13x = 7,260.12 × 2,871.05
  4. Step 4: Simplify right side
    5,261.13x = 20,844,167.53
  5. Step 5: Solve for x
    x = 20,844,167.53/5,261.13
  6. Step 6: Final answer
    x = 3,961.92

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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.