Home / 4,176.90-5,767.99-2,687.40

Finding the Fourth Proportional to 4,176.90, 5,767.99 and 2,687.40

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Solution

The fourth proportional to 4,176.90, 5,767.99 and 2,687.40 is: 3,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,176.90 : 5,767.99 = 2,687.40 : x
  2. Step 2: Convert to fraction form
    4,176.90/5,767.99 = 2,687.40/x
  3. Step 3: Cross multiply
    4,176.90x = 5,767.99 × 2,687.40
  4. Step 4: Simplify right side
    4,176.90x = 15,500,896.33
  5. Step 5: Solve for x
    x = 15,500,896.33/4,176.90
  6. Step 6: Final answer
    x = 3,711.10

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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.