Home / 3,679.40-5,519.03-1,488.10

Finding the Fourth Proportional to 3,679.40, 5,519.03 and 1,488.10

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Solution

The fourth proportional to 3,679.40, 5,519.03 and 1,488.10 is: 2,232.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.40 : 5,519.03 = 1,488.10 : x
  2. Step 2: Convert to fraction form
    3,679.40/5,519.03 = 1,488.10/x
  3. Step 3: Cross multiply
    3,679.40x = 5,519.03 × 1,488.10
  4. Step 4: Simplify right side
    3,679.40x = 8,212,868.54
  5. Step 5: Solve for x
    x = 8,212,868.54/3,679.40
  6. Step 6: Final answer
    x = 2,232.12

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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.