Home / 7,040.24-9,715.32-3,853.55

Finding the Fourth Proportional to 7,040.24, 9,715.32 and 3,853.55

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Solution

The fourth proportional to 7,040.24, 9,715.32 and 3,853.55 is: 5,317.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.24 : 9,715.32 = 3,853.55 : x
  2. Step 2: Convert to fraction form
    7,040.24/9,715.32 = 3,853.55/x
  3. Step 3: Cross multiply
    7,040.24x = 9,715.32 × 3,853.55
  4. Step 4: Simplify right side
    7,040.24x = 37,438,471.39
  5. Step 5: Solve for x
    x = 37,438,471.39/7,040.24
  6. Step 6: Final answer
    x = 5,317.78

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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.