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Finding the Fourth Proportional to 3,373.68, 4,656.60 and 1,976.88

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Solution

The fourth proportional to 3,373.68, 4,656.60 and 1,976.88 is: 2,728.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,373.68 : 4,656.60 = 1,976.88 : x
  2. Step 2: Convert to fraction form
    3,373.68/4,656.60 = 1,976.88/x
  3. Step 3: Cross multiply
    3,373.68x = 4,656.60 × 1,976.88
  4. Step 4: Simplify right side
    3,373.68x = 9,205,539.41
  5. Step 5: Solve for x
    x = 9,205,539.41/3,373.68
  6. Step 6: Final answer
    x = 2,728.63

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1.5x scale

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.