Home / 6,876.84-10,315.61-2,660.08

Finding the Fourth Proportional to 6,876.84, 10,315.61 and 2,660.08

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Solution

The fourth proportional to 6,876.84, 10,315.61 and 2,660.08 is: 3,990.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,876.84 : 10,315.61 = 2,660.08 : x
  2. Step 2: Convert to fraction form
    6,876.84/10,315.61 = 2,660.08/x
  3. Step 3: Cross multiply
    6,876.84x = 10,315.61 × 2,660.08
  4. Step 4: Simplify right side
    6,876.84x = 27,440,347.85
  5. Step 5: Solve for x
    x = 27,440,347.85/6,876.84
  6. Step 6: Final answer
    x = 3,990.26

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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.