Home / 4,065.15-5,612.52-3,320.90

Finding the Fourth Proportional to 4,065.15, 5,612.52 and 3,320.90

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Solution

The fourth proportional to 4,065.15, 5,612.52 and 3,320.90 is: 4,584.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,065.15 : 5,612.52 = 3,320.90 : x
  2. Step 2: Convert to fraction form
    4,065.15/5,612.52 = 3,320.90/x
  3. Step 3: Cross multiply
    4,065.15x = 5,612.52 × 3,320.90
  4. Step 4: Simplify right side
    4,065.15x = 18,638,589.61
  5. Step 5: Solve for x
    x = 18,638,589.61/4,065.15
  6. Step 6: Final answer
    x = 4,584.97

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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.