Home / 2,860.88-3,923.38-2,711.12

Finding the Fourth Proportional to 2,860.88, 3,923.38 and 2,711.12

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Solution

The fourth proportional to 2,860.88, 3,923.38 and 2,711.12 is: 3,718.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.88 : 3,923.38 = 2,711.12 : x
  2. Step 2: Convert to fraction form
    2,860.88/3,923.38 = 2,711.12/x
  3. Step 3: Cross multiply
    2,860.88x = 3,923.38 × 2,711.12
  4. Step 4: Simplify right side
    2,860.88x = 10,636,753.99
  5. Step 5: Solve for x
    x = 10,636,753.99/2,860.88
  6. Step 6: Final answer
    x = 3,718.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.