Home / 5,180.36-7,148.90-2,822.50

Finding the Fourth Proportional to 5,180.36, 7,148.90 and 2,822.50

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Solution

The fourth proportional to 5,180.36, 7,148.90 and 2,822.50 is: 3,895.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.36 : 7,148.90 = 2,822.50 : x
  2. Step 2: Convert to fraction form
    5,180.36/7,148.90 = 2,822.50/x
  3. Step 3: Cross multiply
    5,180.36x = 7,148.90 × 2,822.50
  4. Step 4: Simplify right side
    5,180.36x = 20,177,780.35
  5. Step 5: Solve for x
    x = 20,177,780.35/5,180.36
  6. Step 6: Final answer
    x = 3,895.05

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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.