Home / 4,221.12-5,871.66-4,140.93

Finding the Fourth Proportional to 4,221.12, 5,871.66 and 4,140.93

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Solution

The fourth proportional to 4,221.12, 5,871.66 and 4,140.93 is: 5,760.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.12 : 5,871.66 = 4,140.93 : x
  2. Step 2: Convert to fraction form
    4,221.12/5,871.66 = 4,140.93/x
  3. Step 3: Cross multiply
    4,221.12x = 5,871.66 × 4,140.93
  4. Step 4: Simplify right side
    4,221.12x = 24,314,133.04
  5. Step 5: Solve for x
    x = 24,314,133.04/4,221.12
  6. Step 6: Final answer
    x = 5,760.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.