Home / 6,904.20-9,528.18-3,918.92

Finding the Fourth Proportional to 6,904.20, 9,528.18 and 3,918.92

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Solution

The fourth proportional to 6,904.20, 9,528.18 and 3,918.92 is: 5,408.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,904.20 : 9,528.18 = 3,918.92 : x
  2. Step 2: Convert to fraction form
    6,904.20/9,528.18 = 3,918.92/x
  3. Step 3: Cross multiply
    6,904.20x = 9,528.18 × 3,918.92
  4. Step 4: Simplify right side
    6,904.20x = 37,340,175.17
  5. Step 5: Solve for x
    x = 37,340,175.17/6,904.20
  6. Step 6: Final answer
    x = 5,408.33

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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.