Home / 7,281.92-10,920.76-2,015.57

Finding the Fourth Proportional to 7,281.92, 10,920.76 and 2,015.57

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Solution

The fourth proportional to 7,281.92, 10,920.76 and 2,015.57 is: 3,022.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.92 : 10,920.76 = 2,015.57 : x
  2. Step 2: Convert to fraction form
    7,281.92/10,920.76 = 2,015.57/x
  3. Step 3: Cross multiply
    7,281.92x = 10,920.76 × 2,015.57
  4. Step 4: Simplify right side
    7,281.92x = 22,011,578.50
  5. Step 5: Solve for x
    x = 22,011,578.50/7,281.92
  6. Step 6: Final answer
    x = 3,022.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.