Home / 5,438.40-7,504.98-3,080.54

Finding the Fourth Proportional to 5,438.40, 7,504.98 and 3,080.54

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Solution

The fourth proportional to 5,438.40, 7,504.98 and 3,080.54 is: 4,251.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.40 : 7,504.98 = 3,080.54 : x
  2. Step 2: Convert to fraction form
    5,438.40/7,504.98 = 3,080.54/x
  3. Step 3: Cross multiply
    5,438.40x = 7,504.98 × 3,080.54
  4. Step 4: Simplify right side
    5,438.40x = 23,119,353.56
  5. Step 5: Solve for x
    x = 23,119,353.56/5,438.40
  6. Step 6: Final answer
    x = 4,251.13

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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.