Home / 7,126.80-10,698.30-2,969.88

Finding the Fourth Proportional to 7,126.80, 10,698.30 and 2,969.88

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Solution

The fourth proportional to 7,126.80, 10,698.30 and 2,969.88 is: 4,458.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.80 : 10,698.30 = 2,969.88 : x
  2. Step 2: Convert to fraction form
    7,126.80/10,698.30 = 2,969.88/x
  3. Step 3: Cross multiply
    7,126.80x = 10,698.30 × 2,969.88
  4. Step 4: Simplify right side
    7,126.80x = 31,772,667.20
  5. Step 5: Solve for x
    x = 31,772,667.20/7,126.80
  6. Step 6: Final answer
    x = 4,458.20

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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.