Home / 5,209.92-7,816.20-1,512.17

Finding the Fourth Proportional to 5,209.92, 7,816.20 and 1,512.17

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Solution

The fourth proportional to 5,209.92, 7,816.20 and 1,512.17 is: 2,268.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.92 : 7,816.20 = 1,512.17 : x
  2. Step 2: Convert to fraction form
    5,209.92/7,816.20 = 1,512.17/x
  3. Step 3: Cross multiply
    5,209.92x = 7,816.20 × 1,512.17
  4. Step 4: Simplify right side
    5,209.92x = 11,819,407.71
  5. Step 5: Solve for x
    x = 11,819,407.71/5,209.92
  6. Step 6: Final answer
    x = 2,268.64

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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.