Home / 5,320.45-7,984.11-2,398.57

Finding the Fourth Proportional to 5,320.45, 7,984.11 and 2,398.57

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Solution

The fourth proportional to 5,320.45, 7,984.11 and 2,398.57 is: 3,599.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.45 : 7,984.11 = 2,398.57 : x
  2. Step 2: Convert to fraction form
    5,320.45/7,984.11 = 2,398.57/x
  3. Step 3: Cross multiply
    5,320.45x = 7,984.11 × 2,398.57
  4. Step 4: Simplify right side
    5,320.45x = 19,150,466.68
  5. Step 5: Solve for x
    x = 19,150,466.68/5,320.45
  6. Step 6: Final answer
    x = 3,599.41

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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.