Home / 1,850.04-2,553.48-1,291.68

Finding the Fourth Proportional to 1,850.04, 2,553.48 and 1,291.68

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Solution

The fourth proportional to 1,850.04, 2,553.48 and 1,291.68 is: 1,782.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.04 : 2,553.48 = 1,291.68 : x
  2. Step 2: Convert to fraction form
    1,850.04/2,553.48 = 1,291.68/x
  3. Step 3: Cross multiply
    1,850.04x = 2,553.48 × 1,291.68
  4. Step 4: Simplify right side
    1,850.04x = 3,298,279.05
  5. Step 5: Solve for x
    x = 3,298,279.05/1,850.04
  6. Step 6: Final answer
    x = 1,782.81

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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.