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Finding the Fourth Proportional to 1,644.52, 2,466.76 and 490.18

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Solution

The fourth proportional to 1,644.52, 2,466.76 and 490.18 is: 735.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644.52 : 2,466.76 = 490.18 : x
  2. Step 2: Convert to fraction form
    1,644.52/2,466.76 = 490.18/x
  3. Step 3: Cross multiply
    1,644.52x = 2,466.76 × 490.18
  4. Step 4: Simplify right side
    1,644.52x = 1,209,156.42
  5. Step 5: Solve for x
    x = 1,209,156.42/1,644.52
  6. Step 6: Final answer
    x = 735.26

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Double scale
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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.