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Finding the Fourth Proportional to 2,809.52, 4,215.04 and 2,320.32

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Solution

The fourth proportional to 2,809.52, 4,215.04 and 2,320.32 is: 3,481.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.52 : 4,215.04 = 2,320.32 : x
  2. Step 2: Convert to fraction form
    2,809.52/4,215.04 = 2,320.32/x
  3. Step 3: Cross multiply
    2,809.52x = 4,215.04 × 2,320.32
  4. Step 4: Simplify right side
    2,809.52x = 9,780,241.61
  5. Step 5: Solve for x
    x = 9,780,241.61/2,809.52
  6. Step 6: Final answer
    x = 3,481.11

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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.