Home / 7,104.20-10,656.30-1,839.20

Finding the Fourth Proportional to 7,104.20, 10,656.30 and 1,839.20

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Solution

The fourth proportional to 7,104.20, 10,656.30 and 1,839.20 is: 2,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.20 : 10,656.30 = 1,839.20 : x
  2. Step 2: Convert to fraction form
    7,104.20/10,656.30 = 1,839.20/x
  3. Step 3: Cross multiply
    7,104.20x = 10,656.30 × 1,839.20
  4. Step 4: Simplify right side
    7,104.20x = 19,599,066.96
  5. Step 5: Solve for x
    x = 19,599,066.96/7,104.20
  6. Step 6: Final answer
    x = 2,758.80

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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.