Home / 1,839.45-2,538.38-1,000.13

Finding the Fourth Proportional to 1,839.45, 2,538.38 and 1,000.13

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Solution

The fourth proportional to 1,839.45, 2,538.38 and 1,000.13 is: 1,380.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839.45 : 2,538.38 = 1,000.13 : x
  2. Step 2: Convert to fraction form
    1,839.45/2,538.38 = 1,000.13/x
  3. Step 3: Cross multiply
    1,839.45x = 2,538.38 × 1,000.13
  4. Step 4: Simplify right side
    1,839.45x = 2,538,709.99
  5. Step 5: Solve for x
    x = 2,538,709.99/1,839.45
  6. Step 6: Final answer
    x = 1,380.15

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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.