Home / 2,335.13-3,222.41-1,287.19

Finding the Fourth Proportional to 2,335.13, 3,222.41 and 1,287.19

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Solution

The fourth proportional to 2,335.13, 3,222.41 and 1,287.19 is: 1,776.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,335.13 : 3,222.41 = 1,287.19 : x
  2. Step 2: Convert to fraction form
    2,335.13/3,222.41 = 1,287.19/x
  3. Step 3: Cross multiply
    2,335.13x = 3,222.41 × 1,287.19
  4. Step 4: Simplify right side
    2,335.13x = 4,147,853.93
  5. Step 5: Solve for x
    x = 4,147,853.93/2,335.13
  6. Step 6: Final answer
    x = 1,776.28

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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.