Home / 5,580.05-7,700.75-3,190.15

Finding the Fourth Proportional to 5,580.05, 7,700.75 and 3,190.15

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Solution

The fourth proportional to 5,580.05, 7,700.75 and 3,190.15 is: 4,402.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,580.05 : 7,700.75 = 3,190.15 : x
  2. Step 2: Convert to fraction form
    5,580.05/7,700.75 = 3,190.15/x
  3. Step 3: Cross multiply
    5,580.05x = 7,700.75 × 3,190.15
  4. Step 4: Simplify right side
    5,580.05x = 24,566,493.16
  5. Step 5: Solve for x
    x = 24,566,493.16/5,580.05
  6. Step 6: Final answer
    x = 4,402.56

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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.