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Finding the Fourth Proportional to 2,882.97, 3,975.89 and 1,887.89

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Solution

The fourth proportional to 2,882.97, 3,975.89 and 1,887.89 is: 2,603.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,882.97 : 3,975.89 = 1,887.89 : x
  2. Step 2: Convert to fraction form
    2,882.97/3,975.89 = 1,887.89/x
  3. Step 3: Cross multiply
    2,882.97x = 3,975.89 × 1,887.89
  4. Step 4: Simplify right side
    2,882.97x = 7,506,013.65
  5. Step 5: Solve for x
    x = 7,506,013.65/2,882.97
  6. Step 6: Final answer
    x = 2,603.57

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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.