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Finding the Fourth Proportional to 2,954.46, 4,432.55 and 874.51

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Solution

The fourth proportional to 2,954.46, 4,432.55 and 874.51 is: 1,312.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,954.46 : 4,432.55 = 874.51 : x
  2. Step 2: Convert to fraction form
    2,954.46/4,432.55 = 874.51/x
  3. Step 3: Cross multiply
    2,954.46x = 4,432.55 × 874.51
  4. Step 4: Simplify right side
    2,954.46x = 3,876,309.30
  5. Step 5: Solve for x
    x = 3,876,309.30/2,954.46
  6. Step 6: Final answer
    x = 1,312.02

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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.