Home / 5,180.55-7,151.05-3,505.67

Finding the Fourth Proportional to 5,180.55, 7,151.05 and 3,505.67

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Solution

The fourth proportional to 5,180.55, 7,151.05 and 3,505.67 is: 4,839.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.55 : 7,151.05 = 3,505.67 : x
  2. Step 2: Convert to fraction form
    5,180.55/7,151.05 = 3,505.67/x
  3. Step 3: Cross multiply
    5,180.55x = 7,151.05 × 3,505.67
  4. Step 4: Simplify right side
    5,180.55x = 25,069,221.45
  5. Step 5: Solve for x
    x = 25,069,221.45/5,180.55
  6. Step 6: Final answer
    x = 4,839.10

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1.5x scale

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.