Home / 7,180.28-9,907.71-4,035.86

Finding the Fourth Proportional to 7,180.28, 9,907.71 and 4,035.86

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Solution

The fourth proportional to 7,180.28, 9,907.71 and 4,035.86 is: 5,568.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.28 : 9,907.71 = 4,035.86 : x
  2. Step 2: Convert to fraction form
    7,180.28/9,907.71 = 4,035.86/x
  3. Step 3: Cross multiply
    7,180.28x = 9,907.71 × 4,035.86
  4. Step 4: Simplify right side
    7,180.28x = 39,986,130.48
  5. Step 5: Solve for x
    x = 39,986,130.48/7,180.28
  6. Step 6: Final answer
    x = 5,568.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.