Home / 6,905.46-9,530.54-3,920.68

Finding the Fourth Proportional to 6,905.46, 9,530.54 and 3,920.68

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Solution

The fourth proportional to 6,905.46, 9,530.54 and 3,920.68 is: 5,411.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.46 : 9,530.54 = 3,920.68 : x
  2. Step 2: Convert to fraction form
    6,905.46/9,530.54 = 3,920.68/x
  3. Step 3: Cross multiply
    6,905.46x = 9,530.54 × 3,920.68
  4. Step 4: Simplify right side
    6,905.46x = 37,366,197.57
  5. Step 5: Solve for x
    x = 37,366,197.57/6,905.46
  6. Step 6: Final answer
    x = 5,411.11

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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.