Home / 2,335.14-3,222.29-1,287.20

Finding the Fourth Proportional to 2,335.14, 3,222.29 and 1,287.20

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Solution

The fourth proportional to 2,335.14, 3,222.29 and 1,287.20 is: 1,776.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,335.14 : 3,222.29 = 1,287.20 : x
  2. Step 2: Convert to fraction form
    2,335.14/3,222.29 = 1,287.20/x
  3. Step 3: Cross multiply
    2,335.14x = 3,222.29 × 1,287.20
  4. Step 4: Simplify right side
    2,335.14x = 4,147,715.58
  5. Step 5: Solve for x
    x = 4,147,715.58/2,335.14
  6. Step 6: Final answer
    x = 1,776.22

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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.