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Finding the Fourth Proportional to 1,630.96, 2,444.28 and 763.45

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Solution

The fourth proportional to 1,630.96, 2,444.28 and 763.45 is: 1,144.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.96 : 2,444.28 = 763.45 : x
  2. Step 2: Convert to fraction form
    1,630.96/2,444.28 = 763.45/x
  3. Step 3: Cross multiply
    1,630.96x = 2,444.28 × 763.45
  4. Step 4: Simplify right side
    1,630.96x = 1,866,076.59
  5. Step 5: Solve for x
    x = 1,866,076.59/1,630.96
  6. Step 6: Final answer
    x = 1,144.16

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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.