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Finding the Fourth Proportional to 1,862.84, 2,798.61 and 1,757.76

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Solution

The fourth proportional to 1,862.84, 2,798.61 and 1,757.76 is: 2,640.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.84 : 2,798.61 = 1,757.76 : x
  2. Step 2: Convert to fraction form
    1,862.84/2,798.61 = 1,757.76/x
  3. Step 3: Cross multiply
    1,862.84x = 2,798.61 × 1,757.76
  4. Step 4: Simplify right side
    1,862.84x = 4,919,261.93
  5. Step 5: Solve for x
    x = 4,919,261.93/1,862.84
  6. Step 6: Final answer
    x = 2,640.74

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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.