Home / 7,145.36-10,718.74-1,951.22

Finding the Fourth Proportional to 7,145.36, 10,718.74 and 1,951.22

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Solution

The fourth proportional to 7,145.36, 10,718.74 and 1,951.22 is: 2,927.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.36 : 10,718.74 = 1,951.22 : x
  2. Step 2: Convert to fraction form
    7,145.36/10,718.74 = 1,951.22/x
  3. Step 3: Cross multiply
    7,145.36x = 10,718.74 × 1,951.22
  4. Step 4: Simplify right side
    7,145.36x = 20,914,619.86
  5. Step 5: Solve for x
    x = 20,914,619.86/7,145.36
  6. Step 6: Final answer
    x = 2,927.02

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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.