Home / 7,099.20-9,796.72-3,955.68

Finding the Fourth Proportional to 7,099.20, 9,796.72 and 3,955.68

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Solution

The fourth proportional to 7,099.20, 9,796.72 and 3,955.68 is: 5,458.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,099.20 : 9,796.72 = 3,955.68 : x
  2. Step 2: Convert to fraction form
    7,099.20/9,796.72 = 3,955.68/x
  3. Step 3: Cross multiply
    7,099.20x = 9,796.72 × 3,955.68
  4. Step 4: Simplify right side
    7,099.20x = 38,752,689.37
  5. Step 5: Solve for x
    x = 38,752,689.37/7,099.20
  6. Step 6: Final answer
    x = 5,458.74

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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.