Home / 3,780.56-5,217.35-2,102.14

Finding the Fourth Proportional to 3,780.56, 5,217.35 and 2,102.14

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Solution

The fourth proportional to 3,780.56, 5,217.35 and 2,102.14 is: 2,901.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.56 : 5,217.35 = 2,102.14 : x
  2. Step 2: Convert to fraction form
    3,780.56/5,217.35 = 2,102.14/x
  3. Step 3: Cross multiply
    3,780.56x = 5,217.35 × 2,102.14
  4. Step 4: Simplify right side
    3,780.56x = 10,967,600.13
  5. Step 5: Solve for x
    x = 10,967,600.13/3,780.56
  6. Step 6: Final answer
    x = 2,901.05

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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.