Home / 5,180.79-7,149.49-2,822.93

Finding the Fourth Proportional to 5,180.79, 7,149.49 and 2,822.93

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Solution

The fourth proportional to 5,180.79, 7,149.49 and 2,822.93 is: 3,895.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.79 : 7,149.49 = 2,822.93 : x
  2. Step 2: Convert to fraction form
    5,180.79/7,149.49 = 2,822.93/x
  3. Step 3: Cross multiply
    5,180.79x = 7,149.49 × 2,822.93
  4. Step 4: Simplify right side
    5,180.79x = 20,182,501.75
  5. Step 5: Solve for x
    x = 20,182,501.75/5,180.79
  6. Step 6: Final answer
    x = 3,895.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.