Home / 7,320.75-10,981.09-2,390.37

Finding the Fourth Proportional to 7,320.75, 10,981.09 and 2,390.37

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Solution

The fourth proportional to 7,320.75, 10,981.09 and 2,390.37 is: 3,585.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.75 : 10,981.09 = 2,390.37 : x
  2. Step 2: Convert to fraction form
    7,320.75/10,981.09 = 2,390.37/x
  3. Step 3: Cross multiply
    7,320.75x = 10,981.09 × 2,390.37
  4. Step 4: Simplify right side
    7,320.75x = 26,248,868.10
  5. Step 5: Solve for x
    x = 26,248,868.10/7,320.75
  6. Step 6: Final answer
    x = 3,585.54

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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.