Home / 5,212.97-7,815.55-1,925.45

Finding the Fourth Proportional to 5,212.97, 7,815.55 and 1,925.45

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Solution

The fourth proportional to 5,212.97, 7,815.55 and 1,925.45 is: 2,886.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.97 : 7,815.55 = 1,925.45 : x
  2. Step 2: Convert to fraction form
    5,212.97/7,815.55 = 1,925.45/x
  3. Step 3: Cross multiply
    5,212.97x = 7,815.55 × 1,925.45
  4. Step 4: Simplify right side
    5,212.97x = 15,048,450.75
  5. Step 5: Solve for x
    x = 15,048,450.75/5,212.97
  6. Step 6: Final answer
    x = 2,886.73

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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.