Home / 1,749.39-2,412.55-1,086

Finding the Fourth Proportional to 1,749.39, 2,412.55 and 1,086

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Solution

The fourth proportional to 1,749.39, 2,412.55 and 1,086 is: 1,497.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749.39 : 2,412.55 = 1,086 : x
  2. Step 2: Convert to fraction form
    1,749.39/2,412.55 = 1,086/x
  3. Step 3: Cross multiply
    1,749.39x = 2,412.55 × 1,086
  4. Step 4: Simplify right side
    1,749.39x = 2,620,029.30
  5. Step 5: Solve for x
    x = 2,620,029.30/1,749.39
  6. Step 6: Final answer
    x = 1,497.68

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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.