Home / 4,909.60-6,774.32-2,920.66

Finding the Fourth Proportional to 4,909.60, 6,774.32 and 2,920.66

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Solution

The fourth proportional to 4,909.60, 6,774.32 and 2,920.66 is: 4,029.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.60 : 6,774.32 = 2,920.66 : x
  2. Step 2: Convert to fraction form
    4,909.60/6,774.32 = 2,920.66/x
  3. Step 3: Cross multiply
    4,909.60x = 6,774.32 × 2,920.66
  4. Step 4: Simplify right side
    4,909.60x = 19,785,470.85
  5. Step 5: Solve for x
    x = 19,785,470.85/4,909.60
  6. Step 6: Final answer
    x = 4,029.96

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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.