Home / 2,179.93-3,008.29-1,284.19

Finding the Fourth Proportional to 2,179.93, 3,008.29 and 1,284.19

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Solution

The fourth proportional to 2,179.93, 3,008.29 and 1,284.19 is: 1,772.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.93 : 3,008.29 = 1,284.19 : x
  2. Step 2: Convert to fraction form
    2,179.93/3,008.29 = 1,284.19/x
  3. Step 3: Cross multiply
    2,179.93x = 3,008.29 × 1,284.19
  4. Step 4: Simplify right side
    2,179.93x = 3,863,215.94
  5. Step 5: Solve for x
    x = 3,863,215.94/2,179.93
  6. Step 6: Final answer
    x = 1,772.17

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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.