Home / 1,551.15-2,326.57-626.79

Finding the Fourth Proportional to 1,551.15, 2,326.57 and 626.79

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Solution

The fourth proportional to 1,551.15, 2,326.57 and 626.79 is: 940.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.15 : 2,326.57 = 626.79 : x
  2. Step 2: Convert to fraction form
    1,551.15/2,326.57 = 626.79/x
  3. Step 3: Cross multiply
    1,551.15x = 2,326.57 × 626.79
  4. Step 4: Simplify right side
    1,551.15x = 1,458,268.41
  5. Step 5: Solve for x
    x = 1,458,268.41/1,551.15
  6. Step 6: Final answer
    x = 940.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.