Home / 5,438.85-7,505.35-3,081.01

Finding the Fourth Proportional to 5,438.85, 7,505.35 and 3,081.01

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Solution

The fourth proportional to 5,438.85, 7,505.35 and 3,081.01 is: 4,251.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.85 : 7,505.35 = 3,081.01 : x
  2. Step 2: Convert to fraction form
    5,438.85/7,505.35 = 3,081.01/x
  3. Step 3: Cross multiply
    5,438.85x = 7,505.35 × 3,081.01
  4. Step 4: Simplify right side
    5,438.85x = 23,124,058.40
  5. Step 5: Solve for x
    x = 23,124,058.40/5,438.85
  6. Step 6: Final answer
    x = 4,251.64

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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.