Home / 3,619.10-5,428.65-2,744.30

Finding the Fourth Proportional to 3,619.10, 5,428.65 and 2,744.30

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Solution

The fourth proportional to 3,619.10, 5,428.65 and 2,744.30 is: 4,116.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.10 : 5,428.65 = 2,744.30 : x
  2. Step 2: Convert to fraction form
    3,619.10/5,428.65 = 2,744.30/x
  3. Step 3: Cross multiply
    3,619.10x = 5,428.65 × 2,744.30
  4. Step 4: Simplify right side
    3,619.10x = 14,897,844.20
  5. Step 5: Solve for x
    x = 14,897,844.20/3,619.10
  6. Step 6: Final answer
    x = 4,116.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.