Home / 3,718.25-5,130.80-2,226.13

Finding the Fourth Proportional to 3,718.25, 5,130.80 and 2,226.13

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Solution

The fourth proportional to 3,718.25, 5,130.80 and 2,226.13 is: 3,071.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.25 : 5,130.80 = 2,226.13 : x
  2. Step 2: Convert to fraction form
    3,718.25/5,130.80 = 2,226.13/x
  3. Step 3: Cross multiply
    3,718.25x = 5,130.80 × 2,226.13
  4. Step 4: Simplify right side
    3,718.25x = 11,421,820.54
  5. Step 5: Solve for x
    x = 11,421,820.54/3,718.25
  6. Step 6: Final answer
    x = 3,071.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.