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Finding the Fourth Proportional to 1,886.18, 2,830.08 and 732.74

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Solution

The fourth proportional to 1,886.18, 2,830.08 and 732.74 is: 1,099.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,886.18 : 2,830.08 = 732.74 : x
  2. Step 2: Convert to fraction form
    1,886.18/2,830.08 = 732.74/x
  3. Step 3: Cross multiply
    1,886.18x = 2,830.08 × 732.74
  4. Step 4: Simplify right side
    1,886.18x = 2,073,712.82
  5. Step 5: Solve for x
    x = 2,073,712.82/1,886.18
  6. Step 6: Final answer
    x = 1,099.42

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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.