Home / 5,015.42-7,515.95-2,819.54

Finding the Fourth Proportional to 5,015.42, 7,515.95 and 2,819.54

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Solution

The fourth proportional to 5,015.42, 7,515.95 and 2,819.54 is: 4,225.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.42 : 7,515.95 = 2,819.54 : x
  2. Step 2: Convert to fraction form
    5,015.42/7,515.95 = 2,819.54/x
  3. Step 3: Cross multiply
    5,015.42x = 7,515.95 × 2,819.54
  4. Step 4: Simplify right side
    5,015.42x = 21,191,507.57
  5. Step 5: Solve for x
    x = 21,191,507.57/5,015.42
  6. Step 6: Final answer
    x = 4,225.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.