Home / 4,221.22-6,331.10-1,142.50

Finding the Fourth Proportional to 4,221.22, 6,331.10 and 1,142.50

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Solution

The fourth proportional to 4,221.22, 6,331.10 and 1,142.50 is: 1,713.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.22 : 6,331.10 = 1,142.50 : x
  2. Step 2: Convert to fraction form
    4,221.22/6,331.10 = 1,142.50/x
  3. Step 3: Cross multiply
    4,221.22x = 6,331.10 × 1,142.50
  4. Step 4: Simplify right side
    4,221.22x = 7,233,281.75
  5. Step 5: Solve for x
    x = 7,233,281.75/4,221.22
  6. Step 6: Final answer
    x = 1,713.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.