Home / 5,405.05-7,458.95-3,015.03

Finding the Fourth Proportional to 5,405.05, 7,458.95 and 3,015.03

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Solution

The fourth proportional to 5,405.05, 7,458.95 and 3,015.03 is: 4,160.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.05 : 7,458.95 = 3,015.03 : x
  2. Step 2: Convert to fraction form
    5,405.05/7,458.95 = 3,015.03/x
  3. Step 3: Cross multiply
    5,405.05x = 7,458.95 × 3,015.03
  4. Step 4: Simplify right side
    5,405.05x = 22,488,958.02
  5. Step 5: Solve for x
    x = 22,488,958.02/5,405.05
  6. Step 6: Final answer
    x = 4,160.73

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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.