Home / 7,320.54-10,981.88-2,125.74

Finding the Fourth Proportional to 7,320.54, 10,981.88 and 2,125.74

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Solution

The fourth proportional to 7,320.54, 10,981.88 and 2,125.74 is: 3,188.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.54 : 10,981.88 = 2,125.74 : x
  2. Step 2: Convert to fraction form
    7,320.54/10,981.88 = 2,125.74/x
  3. Step 3: Cross multiply
    7,320.54x = 10,981.88 × 2,125.74
  4. Step 4: Simplify right side
    7,320.54x = 23,344,621.59
  5. Step 5: Solve for x
    x = 23,344,621.59/7,320.54
  6. Step 6: Final answer
    x = 3,188.92

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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.