Home / 2,839.68-4,254.75-2,142.84

Finding the Fourth Proportional to 2,839.68, 4,254.75 and 2,142.84

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Solution

The fourth proportional to 2,839.68, 4,254.75 and 2,142.84 is: 3,210.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.68 : 4,254.75 = 2,142.84 : x
  2. Step 2: Convert to fraction form
    2,839.68/4,254.75 = 2,142.84/x
  3. Step 3: Cross multiply
    2,839.68x = 4,254.75 × 2,142.84
  4. Step 4: Simplify right side
    2,839.68x = 9,117,248.49
  5. Step 5: Solve for x
    x = 9,117,248.49/2,839.68
  6. Step 6: Final answer
    x = 3,210.66

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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.