Home / 3,780.81-5,649.53-2,886.39

Finding the Fourth Proportional to 3,780.81, 5,649.53 and 2,886.39

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Solution

The fourth proportional to 3,780.81, 5,649.53 and 2,886.39 is: 4,313.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.81 : 5,649.53 = 2,886.39 : x
  2. Step 2: Convert to fraction form
    3,780.81/5,649.53 = 2,886.39/x
  3. Step 3: Cross multiply
    3,780.81x = 5,649.53 × 2,886.39
  4. Step 4: Simplify right side
    3,780.81x = 16,306,732.46
  5. Step 5: Solve for x
    x = 16,306,732.46/3,780.81
  6. Step 6: Final answer
    x = 4,313.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.