Home / 4,217.85-5,821.07-2,539.80

Finding the Fourth Proportional to 4,217.85, 5,821.07 and 2,539.80

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Solution

The fourth proportional to 4,217.85, 5,821.07 and 2,539.80 is: 3,505.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,217.85 : 5,821.07 = 2,539.80 : x
  2. Step 2: Convert to fraction form
    4,217.85/5,821.07 = 2,539.80/x
  3. Step 3: Cross multiply
    4,217.85x = 5,821.07 × 2,539.80
  4. Step 4: Simplify right side
    4,217.85x = 14,784,340.89
  5. Step 5: Solve for x
    x = 14,784,340.89/4,217.85
  6. Step 6: Final answer
    x = 3,505.18

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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.