Home / 5,438.31-7,506.08-3,081.75

Finding the Fourth Proportional to 5,438.31, 7,506.08 and 3,081.75

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Solution

The fourth proportional to 5,438.31, 7,506.08 and 3,081.75 is: 4,253.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.31 : 7,506.08 = 3,081.75 : x
  2. Step 2: Convert to fraction form
    5,438.31/7,506.08 = 3,081.75/x
  3. Step 3: Cross multiply
    5,438.31x = 7,506.08 × 3,081.75
  4. Step 4: Simplify right side
    5,438.31x = 23,131,846.63
  5. Step 5: Solve for x
    x = 23,131,846.63/5,438.31
  6. Step 6: Final answer
    x = 4,253.50

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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.