Home / 7,120.13-10,682.97-2,959.10

Finding the Fourth Proportional to 7,120.13, 10,682.97 and 2,959.10

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Solution

The fourth proportional to 7,120.13, 10,682.97 and 2,959.10 is: 4,439.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.13 : 10,682.97 = 2,959.10 : x
  2. Step 2: Convert to fraction form
    7,120.13/10,682.97 = 2,959.10/x
  3. Step 3: Cross multiply
    7,120.13x = 10,682.97 × 2,959.10
  4. Step 4: Simplify right side
    7,120.13x = 31,611,976.53
  5. Step 5: Solve for x
    x = 31,611,976.53/7,120.13
  6. Step 6: Final answer
    x = 4,439.80

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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.