Home / 1,451.94-2,006.55-1,218.66

Finding the Fourth Proportional to 1,451.94, 2,006.55 and 1,218.66

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Solution

The fourth proportional to 1,451.94, 2,006.55 and 1,218.66 is: 1,684.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.94 : 2,006.55 = 1,218.66 : x
  2. Step 2: Convert to fraction form
    1,451.94/2,006.55 = 1,218.66/x
  3. Step 3: Cross multiply
    1,451.94x = 2,006.55 × 1,218.66
  4. Step 4: Simplify right side
    1,451.94x = 2,445,302.22
  5. Step 5: Solve for x
    x = 2,445,302.22/1,451.94
  6. Step 6: Final answer
    x = 1,684.16

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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.