Home / 7,040.16-9,715.68-4,245.12

Finding the Fourth Proportional to 7,040.16, 9,715.68 and 4,245.12

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Solution

The fourth proportional to 7,040.16, 9,715.68 and 4,245.12 is: 5,858.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.16 : 9,715.68 = 4,245.12 : x
  2. Step 2: Convert to fraction form
    7,040.16/9,715.68 = 4,245.12/x
  3. Step 3: Cross multiply
    7,040.16x = 9,715.68 × 4,245.12
  4. Step 4: Simplify right side
    7,040.16x = 41,244,227.48
  5. Step 5: Solve for x
    x = 41,244,227.48/7,040.16
  6. Step 6: Final answer
    x = 5,858.42

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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.