Home / 1,839.65-2,538.20-1,177.16

Finding the Fourth Proportional to 1,839.65, 2,538.20 and 1,177.16

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Solution

The fourth proportional to 1,839.65, 2,538.20 and 1,177.16 is: 1,624.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839.65 : 2,538.20 = 1,177.16 : x
  2. Step 2: Convert to fraction form
    1,839.65/2,538.20 = 1,177.16/x
  3. Step 3: Cross multiply
    1,839.65x = 2,538.20 × 1,177.16
  4. Step 4: Simplify right side
    1,839.65x = 2,987,857.76
  5. Step 5: Solve for x
    x = 2,987,857.76/1,839.65
  6. Step 6: Final answer
    x = 1,624.15

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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.