Home / 7,319.07-10,980.41-2,124.95

Finding the Fourth Proportional to 7,319.07, 10,980.41 and 2,124.95

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Solution

The fourth proportional to 7,319.07, 10,980.41 and 2,124.95 is: 3,187.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.07 : 10,980.41 = 2,124.95 : x
  2. Step 2: Convert to fraction form
    7,319.07/10,980.41 = 2,124.95/x
  3. Step 3: Cross multiply
    7,319.07x = 10,980.41 × 2,124.95
  4. Step 4: Simplify right side
    7,319.07x = 23,332,756.70
  5. Step 5: Solve for x
    x = 23,332,756.70/7,319.07
  6. Step 6: Final answer
    x = 3,187.94

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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.