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Finding the Fourth Proportional to 2,292.68, 3,438.96 and 561.32

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Solution

The fourth proportional to 2,292.68, 3,438.96 and 561.32 is: 841.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,292.68 : 3,438.96 = 561.32 : x
  2. Step 2: Convert to fraction form
    2,292.68/3,438.96 = 561.32/x
  3. Step 3: Cross multiply
    2,292.68x = 3,438.96 × 561.32
  4. Step 4: Simplify right side
    2,292.68x = 1,930,357.03
  5. Step 5: Solve for x
    x = 1,930,357.03/2,292.68
  6. Step 6: Final answer
    x = 841.97

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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.