Home / 5,180.19-7,148.88-2,822.46

Finding the Fourth Proportional to 5,180.19, 7,148.88 and 2,822.46

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Solution

The fourth proportional to 5,180.19, 7,148.88 and 2,822.46 is: 3,895.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.19 : 7,148.88 = 2,822.46 : x
  2. Step 2: Convert to fraction form
    5,180.19/7,148.88 = 2,822.46/x
  3. Step 3: Cross multiply
    5,180.19x = 7,148.88 × 2,822.46
  4. Step 4: Simplify right side
    5,180.19x = 20,177,427.84
  5. Step 5: Solve for x
    x = 20,177,427.84/5,180.19
  6. Step 6: Final answer
    x = 3,895.11

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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.