Home / 3,551.31-5,326.98-1,605.15

Finding the Fourth Proportional to 3,551.31, 5,326.98 and 1,605.15

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Solution

The fourth proportional to 3,551.31, 5,326.98 and 1,605.15 is: 2,407.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.31 : 5,326.98 = 1,605.15 : x
  2. Step 2: Convert to fraction form
    3,551.31/5,326.98 = 1,605.15/x
  3. Step 3: Cross multiply
    3,551.31x = 5,326.98 × 1,605.15
  4. Step 4: Simplify right side
    3,551.31x = 8,550,601.95
  5. Step 5: Solve for x
    x = 8,550,601.95/3,551.31
  6. Step 6: Final answer
    x = 2,407.73

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1.5x scale

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.