Home / 2,686.07-4,029.08-2,144.80

Finding the Fourth Proportional to 2,686.07, 4,029.08 and 2,144.80

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Solution

The fourth proportional to 2,686.07, 4,029.08 and 2,144.80 is: 3,217.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.07 : 4,029.08 = 2,144.80 : x
  2. Step 2: Convert to fraction form
    2,686.07/4,029.08 = 2,144.80/x
  3. Step 3: Cross multiply
    2,686.07x = 4,029.08 × 2,144.80
  4. Step 4: Simplify right side
    2,686.07x = 8,641,539.91
  5. Step 5: Solve for x
    x = 8,641,539.91/2,686.07
  6. Step 6: Final answer
    x = 3,217.17

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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.