Home / 7,311.20-10,974.60-3,153.24

Finding the Fourth Proportional to 7,311.20, 10,974.60 and 3,153.24

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Solution

The fourth proportional to 7,311.20, 10,974.60 and 3,153.24 is: 4,733.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,311.20 : 10,974.60 = 3,153.24 : x
  2. Step 2: Convert to fraction form
    7,311.20/10,974.60 = 3,153.24/x
  3. Step 3: Cross multiply
    7,311.20x = 10,974.60 × 3,153.24
  4. Step 4: Simplify right side
    7,311.20x = 34,605,547.70
  5. Step 5: Solve for x
    x = 34,605,547.70/7,311.20
  6. Step 6: Final answer
    x = 4,733.22

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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.