Home / 5,180.81-7,149.51-2,822.95

Finding the Fourth Proportional to 5,180.81, 7,149.51 and 2,822.95

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Solution

The fourth proportional to 5,180.81, 7,149.51 and 2,822.95 is: 3,895.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.81 : 7,149.51 = 2,822.95 : x
  2. Step 2: Convert to fraction form
    5,180.81/7,149.51 = 2,822.95/x
  3. Step 3: Cross multiply
    5,180.81x = 7,149.51 × 2,822.95
  4. Step 4: Simplify right side
    5,180.81x = 20,182,709.25
  5. Step 5: Solve for x
    x = 20,182,709.25/5,180.81
  6. Step 6: Final answer
    x = 3,895.67

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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.