Home / 1,645.15-2,468.30-1,028.13

Finding the Fourth Proportional to 1,645.15, 2,468.30 and 1,028.13

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Solution

The fourth proportional to 1,645.15, 2,468.30 and 1,028.13 is: 1,542.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.15 : 2,468.30 = 1,028.13 : x
  2. Step 2: Convert to fraction form
    1,645.15/2,468.30 = 1,028.13/x
  3. Step 3: Cross multiply
    1,645.15x = 2,468.30 × 1,028.13
  4. Step 4: Simplify right side
    1,645.15x = 2,537,733.28
  5. Step 5: Solve for x
    x = 2,537,733.28/1,645.15
  6. Step 6: Final answer
    x = 1,542.55

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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.