Home / 2,057.94-2,839.52-1,218.92

Finding the Fourth Proportional to 2,057.94, 2,839.52 and 1,218.92

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Solution

The fourth proportional to 2,057.94, 2,839.52 and 1,218.92 is: 1,681.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057.94 : 2,839.52 = 1,218.92 : x
  2. Step 2: Convert to fraction form
    2,057.94/2,839.52 = 1,218.92/x
  3. Step 3: Cross multiply
    2,057.94x = 2,839.52 × 1,218.92
  4. Step 4: Simplify right side
    2,057.94x = 3,461,136.57
  5. Step 5: Solve for x
    x = 3,461,136.57/2,057.94
  6. Step 6: Final answer
    x = 1,681.85

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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.