Home / 5,113.20-7,669.80-2,922.15

Finding the Fourth Proportional to 5,113.20, 7,669.80 and 2,922.15

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Solution

The fourth proportional to 5,113.20, 7,669.80 and 2,922.15 is: 4,383.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.20 : 7,669.80 = 2,922.15 : x
  2. Step 2: Convert to fraction form
    5,113.20/7,669.80 = 2,922.15/x
  3. Step 3: Cross multiply
    5,113.20x = 7,669.80 × 2,922.15
  4. Step 4: Simplify right side
    5,113.20x = 22,412,306.07
  5. Step 5: Solve for x
    x = 22,412,306.07/5,113.20
  6. Step 6: Final answer
    x = 4,383.23

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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.