Home / 7,442.28-11,155.86-3,284.46

Finding the Fourth Proportional to 7,442.28, 11,155.86 and 3,284.46

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Solution

The fourth proportional to 7,442.28, 11,155.86 and 3,284.46 is: 4,923.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,442.28 : 11,155.86 = 3,284.46 : x
  2. Step 2: Convert to fraction form
    7,442.28/11,155.86 = 3,284.46/x
  3. Step 3: Cross multiply
    7,442.28x = 11,155.86 × 3,284.46
  4. Step 4: Simplify right side
    7,442.28x = 36,640,975.94
  5. Step 5: Solve for x
    x = 36,640,975.94/7,442.28
  6. Step 6: Final answer
    x = 4,923.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.