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Finding the Fourth Proportional to 2,954.69, 4,432.10 and 874.70

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Solution

The fourth proportional to 2,954.69, 4,432.10 and 874.70 is: 1,312.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,954.69 : 4,432.10 = 874.70 : x
  2. Step 2: Convert to fraction form
    2,954.69/4,432.10 = 874.70/x
  3. Step 3: Cross multiply
    2,954.69x = 4,432.10 × 874.70
  4. Step 4: Simplify right side
    2,954.69x = 3,876,757.87
  5. Step 5: Solve for x
    x = 3,876,757.87/2,954.69
  6. Step 6: Final answer
    x = 1,312.07

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1.5x scale

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.