Home / 1,625.15-2,436.30-965.40

Finding the Fourth Proportional to 1,625.15, 2,436.30 and 965.40

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Solution

The fourth proportional to 1,625.15, 2,436.30 and 965.40 is: 1,447.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.15 : 2,436.30 = 965.40 : x
  2. Step 2: Convert to fraction form
    1,625.15/2,436.30 = 965.40/x
  3. Step 3: Cross multiply
    1,625.15x = 2,436.30 × 965.40
  4. Step 4: Simplify right side
    1,625.15x = 2,352,004.02
  5. Step 5: Solve for x
    x = 2,352,004.02/1,625.15
  6. Step 6: Final answer
    x = 1,447.25

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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.