Home / 6,680.12-10,017.66-2,782.40

Finding the Fourth Proportional to 6,680.12, 10,017.66 and 2,782.40

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Solution

The fourth proportional to 6,680.12, 10,017.66 and 2,782.40 is: 4,172.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,680.12 : 10,017.66 = 2,782.40 : x
  2. Step 2: Convert to fraction form
    6,680.12/10,017.66 = 2,782.40/x
  3. Step 3: Cross multiply
    6,680.12x = 10,017.66 × 2,782.40
  4. Step 4: Simplify right side
    6,680.12x = 27,873,137.18
  5. Step 5: Solve for x
    x = 27,873,137.18/6,680.12
  6. Step 6: Final answer
    x = 4,172.55

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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.