Home / 7,929.74-10,942.72-4,392.74

Finding the Fourth Proportional to 7,929.74, 10,942.72 and 4,392.74

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Solution

The fourth proportional to 7,929.74, 10,942.72 and 4,392.74 is: 6,061.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.74 : 10,942.72 = 4,392.74 : x
  2. Step 2: Convert to fraction form
    7,929.74/10,942.72 = 4,392.74/x
  3. Step 3: Cross multiply
    7,929.74x = 10,942.72 × 4,392.74
  4. Step 4: Simplify right side
    7,929.74x = 48,068,523.85
  5. Step 5: Solve for x
    x = 48,068,523.85/7,929.74
  6. Step 6: Final answer
    x = 6,061.80

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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.