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Finding the Fourth Proportional to 2,219.56, 3,329.28 and 576.10

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Solution

The fourth proportional to 2,219.56, 3,329.28 and 576.10 is: 864.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.56 : 3,329.28 = 576.10 : x
  2. Step 2: Convert to fraction form
    2,219.56/3,329.28 = 576.10/x
  3. Step 3: Cross multiply
    2,219.56x = 3,329.28 × 576.10
  4. Step 4: Simplify right side
    2,219.56x = 1,917,998.21
  5. Step 5: Solve for x
    x = 1,917,998.21/2,219.56
  6. Step 6: Final answer
    x = 864.13

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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.