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Finding the Fourth Proportional to 2,302.32, 3,453.48 and 721.08

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Solution

The fourth proportional to 2,302.32, 3,453.48 and 721.08 is: 1,081.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,302.32 : 3,453.48 = 721.08 : x
  2. Step 2: Convert to fraction form
    2,302.32/3,453.48 = 721.08/x
  3. Step 3: Cross multiply
    2,302.32x = 3,453.48 × 721.08
  4. Step 4: Simplify right side
    2,302.32x = 2,490,235.36
  5. Step 5: Solve for x
    x = 2,490,235.36/2,302.32
  6. Step 6: Final answer
    x = 1,081.62

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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.