Home / 7,179.36-10,761.92-3,020.40

Finding the Fourth Proportional to 7,179.36, 10,761.92 and 3,020.40

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Solution

The fourth proportional to 7,179.36, 10,761.92 and 3,020.40 is: 4,527.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.36 : 10,761.92 = 3,020.40 : x
  2. Step 2: Convert to fraction form
    7,179.36/10,761.92 = 3,020.40/x
  3. Step 3: Cross multiply
    7,179.36x = 10,761.92 × 3,020.40
  4. Step 4: Simplify right side
    7,179.36x = 32,505,303.17
  5. Step 5: Solve for x
    x = 32,505,303.17/7,179.36
  6. Step 6: Final answer
    x = 4,527.60

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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.