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Finding the Fourth Proportional to 1,876.80, 2,607.84 and 1,853.52

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Solution

The fourth proportional to 1,876.80, 2,607.84 and 1,853.52 is: 2,575.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,876.80 : 2,607.84 = 1,853.52 : x
  2. Step 2: Convert to fraction form
    1,876.80/2,607.84 = 1,853.52/x
  3. Step 3: Cross multiply
    1,876.80x = 2,607.84 × 1,853.52
  4. Step 4: Simplify right side
    1,876.80x = 4,833,683.60
  5. Step 5: Solve for x
    x = 4,833,683.60/1,876.80
  6. Step 6: Final answer
    x = 2,575.49

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.