Home / 2,213.24-3,319.62-752.36

Finding the Fourth Proportional to 2,213.24, 3,319.62 and 752.36

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Solution

The fourth proportional to 2,213.24, 3,319.62 and 752.36 is: 1,128.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.24 : 3,319.62 = 752.36 : x
  2. Step 2: Convert to fraction form
    2,213.24/3,319.62 = 752.36/x
  3. Step 3: Cross multiply
    2,213.24x = 3,319.62 × 752.36
  4. Step 4: Simplify right side
    2,213.24x = 2,497,532.71
  5. Step 5: Solve for x
    x = 2,497,532.71/2,213.24
  6. Step 6: Final answer
    x = 1,128.45

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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.