Home / 5,177.18-7,144.54-2,819.34

Finding the Fourth Proportional to 5,177.18, 7,144.54 and 2,819.34

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Solution

The fourth proportional to 5,177.18, 7,144.54 and 2,819.34 is: 3,890.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.18 : 7,144.54 = 2,819.34 : x
  2. Step 2: Convert to fraction form
    5,177.18/7,144.54 = 2,819.34/x
  3. Step 3: Cross multiply
    5,177.18x = 7,144.54 × 2,819.34
  4. Step 4: Simplify right side
    5,177.18x = 20,142,880.36
  5. Step 5: Solve for x
    x = 20,142,880.36/5,177.18
  6. Step 6: Final answer
    x = 3,890.70

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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.