Home / 1,853.45-2,553.36-1,292.90

Finding the Fourth Proportional to 1,853.45, 2,553.36 and 1,292.90

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Solution

The fourth proportional to 1,853.45, 2,553.36 and 1,292.90 is: 1,781.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853.45 : 2,553.36 = 1,292.90 : x
  2. Step 2: Convert to fraction form
    1,853.45/2,553.36 = 1,292.90/x
  3. Step 3: Cross multiply
    1,853.45x = 2,553.36 × 1,292.90
  4. Step 4: Simplify right side
    1,853.45x = 3,301,226.38
  5. Step 5: Solve for x
    x = 3,301,226.38/1,853.45
  6. Step 6: Final answer
    x = 1,781.13

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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.