Home / 3,066.69-4,218.76-2,686.87

Finding the Fourth Proportional to 3,066.69, 4,218.76 and 2,686.87

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Solution

The fourth proportional to 3,066.69, 4,218.76 and 2,686.87 is: 3,696.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,066.69 : 4,218.76 = 2,686.87 : x
  2. Step 2: Convert to fraction form
    3,066.69/4,218.76 = 2,686.87/x
  3. Step 3: Cross multiply
    3,066.69x = 4,218.76 × 2,686.87
  4. Step 4: Simplify right side
    3,066.69x = 11,335,259.68
  5. Step 5: Solve for x
    x = 11,335,259.68/3,066.69
  6. Step 6: Final answer
    x = 3,696.25

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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.