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Finding the Fourth Proportional to 3,335.44, 4,602.51 and 1,990.80

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Solution

The fourth proportional to 3,335.44, 4,602.51 and 1,990.80 is: 2,747.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,335.44 : 4,602.51 = 1,990.80 : x
  2. Step 2: Convert to fraction form
    3,335.44/4,602.51 = 1,990.80/x
  3. Step 3: Cross multiply
    3,335.44x = 4,602.51 × 1,990.80
  4. Step 4: Simplify right side
    3,335.44x = 9,162,676.91
  5. Step 5: Solve for x
    x = 9,162,676.91/3,335.44
  6. Step 6: Final answer
    x = 2,747.07

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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.