Home / 7,917.78-10,925.55-4,380.54

Finding the Fourth Proportional to 7,917.78, 10,925.55 and 4,380.54

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Solution

The fourth proportional to 7,917.78, 10,925.55 and 4,380.54 is: 6,044.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.78 : 10,925.55 = 4,380.54 : x
  2. Step 2: Convert to fraction form
    7,917.78/10,925.55 = 4,380.54/x
  3. Step 3: Cross multiply
    7,917.78x = 10,925.55 × 4,380.54
  4. Step 4: Simplify right side
    7,917.78x = 47,859,808.80
  5. Step 5: Solve for x
    x = 47,859,808.80/7,917.78
  6. Step 6: Final answer
    x = 6,044.60

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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.