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Finding the Fourth Proportional to 1,292.82, 1,938.88 and 562.22

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Solution

The fourth proportional to 1,292.82, 1,938.88 and 562.22 is: 843.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292.82 : 1,938.88 = 562.22 : x
  2. Step 2: Convert to fraction form
    1,292.82/1,938.88 = 562.22/x
  3. Step 3: Cross multiply
    1,292.82x = 1,938.88 × 562.22
  4. Step 4: Simplify right side
    1,292.82x = 1,090,075.39
  5. Step 5: Solve for x
    x = 1,090,075.39/1,292.82
  6. Step 6: Final answer
    x = 843.18

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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.