Home / 1,914.17-2,871.25-616.55

Finding the Fourth Proportional to 1,914.17, 2,871.25 and 616.55

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Solution

The fourth proportional to 1,914.17, 2,871.25 and 616.55 is: 924.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914.17 : 2,871.25 = 616.55 : x
  2. Step 2: Convert to fraction form
    1,914.17/2,871.25 = 616.55/x
  3. Step 3: Cross multiply
    1,914.17x = 2,871.25 × 616.55
  4. Step 4: Simplify right side
    1,914.17x = 1,770,253.29
  5. Step 5: Solve for x
    x = 1,770,253.29/1,914.17
  6. Step 6: Final answer
    x = 924.82

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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.