Home / 3,587.70-4,949.82-2,015.46

Finding the Fourth Proportional to 3,587.70, 4,949.82 and 2,015.46

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Solution

The fourth proportional to 3,587.70, 4,949.82 and 2,015.46 is: 2,780.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.70 : 4,949.82 = 2,015.46 : x
  2. Step 2: Convert to fraction form
    3,587.70/4,949.82 = 2,015.46/x
  3. Step 3: Cross multiply
    3,587.70x = 4,949.82 × 2,015.46
  4. Step 4: Simplify right side
    3,587.70x = 9,976,164.22
  5. Step 5: Solve for x
    x = 9,976,164.22/3,587.70
  6. Step 6: Final answer
    x = 2,780.66

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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.