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Finding the Fourth Proportional to 2,652.89, 3,979.49 and 897.74

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Solution

The fourth proportional to 2,652.89, 3,979.49 and 897.74 is: 1,346.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652.89 : 3,979.49 = 897.74 : x
  2. Step 2: Convert to fraction form
    2,652.89/3,979.49 = 897.74/x
  3. Step 3: Cross multiply
    2,652.89x = 3,979.49 × 897.74
  4. Step 4: Simplify right side
    2,652.89x = 3,572,522.97
  5. Step 5: Solve for x
    x = 3,572,522.97/2,652.89
  6. Step 6: Final answer
    x = 1,346.66

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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.