Home / 7,921.57-10,930.98-4,384.69

Finding the Fourth Proportional to 7,921.57, 10,930.98 and 4,384.69

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Solution

The fourth proportional to 7,921.57, 10,930.98 and 4,384.69 is: 6,050.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.57 : 10,930.98 = 4,384.69 : x
  2. Step 2: Convert to fraction form
    7,921.57/10,930.98 = 4,384.69/x
  3. Step 3: Cross multiply
    7,921.57x = 10,930.98 × 4,384.69
  4. Step 4: Simplify right side
    7,921.57x = 47,928,958.70
  5. Step 5: Solve for x
    x = 47,928,958.70/7,921.57
  6. Step 6: Final answer
    x = 6,050.44

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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.