Home / 1,965.22-2,710.24-1,292.42

Finding the Fourth Proportional to 1,965.22, 2,710.24 and 1,292.42

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Solution

The fourth proportional to 1,965.22, 2,710.24 and 1,292.42 is: 1,782.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965.22 : 2,710.24 = 1,292.42 : x
  2. Step 2: Convert to fraction form
    1,965.22/2,710.24 = 1,292.42/x
  3. Step 3: Cross multiply
    1,965.22x = 2,710.24 × 1,292.42
  4. Step 4: Simplify right side
    1,965.22x = 3,502,768.38
  5. Step 5: Solve for x
    x = 3,502,768.38/1,965.22
  6. Step 6: Final answer
    x = 1,782.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.