Home / 7,929.60-10,942.68-4,572.40

Finding the Fourth Proportional to 7,929.60, 10,942.68 and 4,572.40

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Solution

The fourth proportional to 7,929.60, 10,942.68 and 4,572.40 is: 6,309.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.60 : 10,942.68 = 4,572.40 : x
  2. Step 2: Convert to fraction form
    7,929.60/10,942.68 = 4,572.40/x
  3. Step 3: Cross multiply
    7,929.60x = 10,942.68 × 4,572.40
  4. Step 4: Simplify right side
    7,929.60x = 50,034,310.03
  5. Step 5: Solve for x
    x = 50,034,310.03/7,929.60
  6. Step 6: Final answer
    x = 6,309.82

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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.