Home / 4,751.39-7,127.09-2,118.22

Finding the Fourth Proportional to 4,751.39, 7,127.09 and 2,118.22

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Solution

The fourth proportional to 4,751.39, 7,127.09 and 2,118.22 is: 3,177.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.39 : 7,127.09 = 2,118.22 : x
  2. Step 2: Convert to fraction form
    4,751.39/7,127.09 = 2,118.22/x
  3. Step 3: Cross multiply
    4,751.39x = 7,127.09 × 2,118.22
  4. Step 4: Simplify right side
    4,751.39x = 15,096,724.11
  5. Step 5: Solve for x
    x = 15,096,724.11/4,751.39
  6. Step 6: Final answer
    x = 3,177.33

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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.