Home / 5,909.74-8,155.26-3,220.90

Finding the Fourth Proportional to 5,909.74, 8,155.26 and 3,220.90

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Solution

The fourth proportional to 5,909.74, 8,155.26 and 3,220.90 is: 4,444.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,909.74 : 8,155.26 = 3,220.90 : x
  2. Step 2: Convert to fraction form
    5,909.74/8,155.26 = 3,220.90/x
  3. Step 3: Cross multiply
    5,909.74x = 8,155.26 × 3,220.90
  4. Step 4: Simplify right side
    5,909.74x = 26,267,276.93
  5. Step 5: Solve for x
    x = 26,267,276.93/5,909.74
  6. Step 6: Final answer
    x = 4,444.74

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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.