Home / 7,160.28-10,719.72-4,189.68

Finding the Fourth Proportional to 7,160.28, 10,719.72 and 4,189.68

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Solution

The fourth proportional to 7,160.28, 10,719.72 and 4,189.68 is: 6,272.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.28 : 10,719.72 = 4,189.68 : x
  2. Step 2: Convert to fraction form
    7,160.28/10,719.72 = 4,189.68/x
  3. Step 3: Cross multiply
    7,160.28x = 10,719.72 × 4,189.68
  4. Step 4: Simplify right side
    7,160.28x = 44,912,196.49
  5. Step 5: Solve for x
    x = 44,912,196.49/7,160.28
  6. Step 6: Final answer
    x = 6,272.41

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1.5x scale

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.