Home / 5,421.22-8,123.35-4,191.66

Finding the Fourth Proportional to 5,421.22, 8,123.35 and 4,191.66

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Solution

The fourth proportional to 5,421.22, 8,123.35 and 4,191.66 is: 6,280.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.22 : 8,123.35 = 4,191.66 : x
  2. Step 2: Convert to fraction form
    5,421.22/8,123.35 = 4,191.66/x
  3. Step 3: Cross multiply
    5,421.22x = 8,123.35 × 4,191.66
  4. Step 4: Simplify right side
    5,421.22x = 34,050,321.26
  5. Step 5: Solve for x
    x = 34,050,321.26/5,421.22
  6. Step 6: Final answer
    x = 6,280.93

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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.