Home / 7,150.83-9,867.97-3,964.07

Finding the Fourth Proportional to 7,150.83, 9,867.97 and 3,964.07

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Solution

The fourth proportional to 7,150.83, 9,867.97 and 3,964.07 is: 5,470.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,150.83 : 9,867.97 = 3,964.07 : x
  2. Step 2: Convert to fraction form
    7,150.83/9,867.97 = 3,964.07/x
  3. Step 3: Cross multiply
    7,150.83x = 9,867.97 × 3,964.07
  4. Step 4: Simplify right side
    7,150.83x = 39,117,316.46
  5. Step 5: Solve for x
    x = 39,117,316.46/7,150.83
  6. Step 6: Final answer
    x = 5,470.32

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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.