Home / 3,669.15-5,063.51-1,990.63

Finding the Fourth Proportional to 3,669.15, 5,063.51 and 1,990.63

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Solution

The fourth proportional to 3,669.15, 5,063.51 and 1,990.63 is: 2,747.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.15 : 5,063.51 = 1,990.63 : x
  2. Step 2: Convert to fraction form
    3,669.15/5,063.51 = 1,990.63/x
  3. Step 3: Cross multiply
    3,669.15x = 5,063.51 × 1,990.63
  4. Step 4: Simplify right side
    3,669.15x = 10,079,557.74
  5. Step 5: Solve for x
    x = 10,079,557.74/3,669.15
  6. Step 6: Final answer
    x = 2,747.11

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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.