Home / 7,917.20-10,925.58-4,380.56

Finding the Fourth Proportional to 7,917.20, 10,925.58 and 4,380.56

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Solution

The fourth proportional to 7,917.20, 10,925.58 and 4,380.56 is: 6,045.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.20 : 10,925.58 = 4,380.56 : x
  2. Step 2: Convert to fraction form
    7,917.20/10,925.58 = 4,380.56/x
  3. Step 3: Cross multiply
    7,917.20x = 10,925.58 × 4,380.56
  4. Step 4: Simplify right side
    7,917.20x = 47,860,158.72
  5. Step 5: Solve for x
    x = 47,860,158.72/7,917.20
  6. Step 6: Final answer
    x = 6,045.09

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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.