Home / 6,878.17-10,315.94-1,946.62

Finding the Fourth Proportional to 6,878.17, 10,315.94 and 1,946.62

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Solution

The fourth proportional to 6,878.17, 10,315.94 and 1,946.62 is: 2,919.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,878.17 : 10,315.94 = 1,946.62 : x
  2. Step 2: Convert to fraction form
    6,878.17/10,315.94 = 1,946.62/x
  3. Step 3: Cross multiply
    6,878.17x = 10,315.94 × 1,946.62
  4. Step 4: Simplify right side
    6,878.17x = 20,081,215.12
  5. Step 5: Solve for x
    x = 20,081,215.12/6,878.17
  6. Step 6: Final answer
    x = 2,919.56

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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.