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Finding the Fourth Proportional to 2,296.60, 3,444.72 and 653.20

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Solution

The fourth proportional to 2,296.60, 3,444.72 and 653.20 is: 979.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,296.60 : 3,444.72 = 653.20 : x
  2. Step 2: Convert to fraction form
    2,296.60/3,444.72 = 653.20/x
  3. Step 3: Cross multiply
    2,296.60x = 3,444.72 × 653.20
  4. Step 4: Simplify right side
    2,296.60x = 2,250,091.10
  5. Step 5: Solve for x
    x = 2,250,091.10/2,296.60
  6. Step 6: Final answer
    x = 979.75

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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.