Home / 3,780.19-5,217.20-2,365.30

Finding the Fourth Proportional to 3,780.19, 5,217.20 and 2,365.30

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Solution

The fourth proportional to 3,780.19, 5,217.20 and 2,365.30 is: 3,264.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.19 : 5,217.20 = 2,365.30 : x
  2. Step 2: Convert to fraction form
    3,780.19/5,217.20 = 2,365.30/x
  3. Step 3: Cross multiply
    3,780.19x = 5,217.20 × 2,365.30
  4. Step 4: Simplify right side
    3,780.19x = 12,340,243.16
  5. Step 5: Solve for x
    x = 12,340,243.16/3,780.19
  6. Step 6: Final answer
    x = 3,264.45

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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.