Home / 7,475.40-11,212.86-3,091.56

Finding the Fourth Proportional to 7,475.40, 11,212.86 and 3,091.56

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Solution

The fourth proportional to 7,475.40, 11,212.86 and 3,091.56 is: 4,637.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.40 : 11,212.86 = 3,091.56 : x
  2. Step 2: Convert to fraction form
    7,475.40/11,212.86 = 3,091.56/x
  3. Step 3: Cross multiply
    7,475.40x = 11,212.86 × 3,091.56
  4. Step 4: Simplify right side
    7,475.40x = 34,665,229.46
  5. Step 5: Solve for x
    x = 34,665,229.46/7,475.40
  6. Step 6: Final answer
    x = 4,637.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.