Home / 3,576.20-5,364.30-979.13

Finding the Fourth Proportional to 3,576.20, 5,364.30 and 979.13

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Solution

The fourth proportional to 3,576.20, 5,364.30 and 979.13 is: 1,468.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.20 : 5,364.30 = 979.13 : x
  2. Step 2: Convert to fraction form
    3,576.20/5,364.30 = 979.13/x
  3. Step 3: Cross multiply
    3,576.20x = 5,364.30 × 979.13
  4. Step 4: Simplify right side
    3,576.20x = 5,252,320.24
  5. Step 5: Solve for x
    x = 5,252,320.24/3,576.20
  6. Step 6: Final answer
    x = 1,468.69

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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.