Home / 7,022.70-10,532.84-2,640.20

Finding the Fourth Proportional to 7,022.70, 10,532.84 and 2,640.20

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Solution

The fourth proportional to 7,022.70, 10,532.84 and 2,640.20 is: 3,959.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,022.70 : 10,532.84 = 2,640.20 : x
  2. Step 2: Convert to fraction form
    7,022.70/10,532.84 = 2,640.20/x
  3. Step 3: Cross multiply
    7,022.70x = 10,532.84 × 2,640.20
  4. Step 4: Simplify right side
    7,022.70x = 27,808,738.30
  5. Step 5: Solve for x
    x = 27,808,738.30/7,022.70
  6. Step 6: Final answer
    x = 3,959.84

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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.