Home / 6,292.24-8,679.69-3,930.28

Finding the Fourth Proportional to 6,292.24, 8,679.69 and 3,930.28

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Solution

The fourth proportional to 6,292.24, 8,679.69 and 3,930.28 is: 5,421.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,292.24 : 8,679.69 = 3,930.28 : x
  2. Step 2: Convert to fraction form
    6,292.24/8,679.69 = 3,930.28/x
  3. Step 3: Cross multiply
    6,292.24x = 8,679.69 × 3,930.28
  4. Step 4: Simplify right side
    6,292.24x = 34,113,667.92
  5. Step 5: Solve for x
    x = 34,113,667.92/6,292.24
  6. Step 6: Final answer
    x = 5,421.54

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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.