Home / 1,643.22-2,465.25-1,351.20

Finding the Fourth Proportional to 1,643.22, 2,465.25 and 1,351.20

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Solution

The fourth proportional to 1,643.22, 2,465.25 and 1,351.20 is: 2,027.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.22 : 2,465.25 = 1,351.20 : x
  2. Step 2: Convert to fraction form
    1,643.22/2,465.25 = 1,351.20/x
  3. Step 3: Cross multiply
    1,643.22x = 2,465.25 × 1,351.20
  4. Step 4: Simplify right side
    1,643.22x = 3,331,045.80
  5. Step 5: Solve for x
    x = 3,331,045.80/1,643.22
  6. Step 6: Final answer
    x = 2,027.15

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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.