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Finding the Fourth Proportional to 1,630.49, 2,250.08 and 922.32

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Solution

The fourth proportional to 1,630.49, 2,250.08 and 922.32 is: 1,272.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.49 : 2,250.08 = 922.32 : x
  2. Step 2: Convert to fraction form
    1,630.49/2,250.08 = 922.32/x
  3. Step 3: Cross multiply
    1,630.49x = 2,250.08 × 922.32
  4. Step 4: Simplify right side
    1,630.49x = 2,075,298.44
  5. Step 5: Solve for x
    x = 2,075,298.44/1,630.49
  6. Step 6: Final answer
    x = 1,272.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.