Home / 5,209.16-7,811.34-1,922.12

Finding the Fourth Proportional to 5,209.16, 7,811.34 and 1,922.12

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Solution

The fourth proportional to 5,209.16, 7,811.34 and 1,922.12 is: 2,882.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.16 : 7,811.34 = 1,922.12 : x
  2. Step 2: Convert to fraction form
    5,209.16/7,811.34 = 1,922.12/x
  3. Step 3: Cross multiply
    5,209.16x = 7,811.34 × 1,922.12
  4. Step 4: Simplify right side
    5,209.16x = 15,014,332.84
  5. Step 5: Solve for x
    x = 15,014,332.84/5,209.16
  6. Step 6: Final answer
    x = 2,882.29

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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.