Home / 1,490.96-2,238.88-1,249.36

Finding the Fourth Proportional to 1,490.96, 2,238.88 and 1,249.36

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Solution

The fourth proportional to 1,490.96, 2,238.88 and 1,249.36 is: 1,876.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.96 : 2,238.88 = 1,249.36 : x
  2. Step 2: Convert to fraction form
    1,490.96/2,238.88 = 1,249.36/x
  3. Step 3: Cross multiply
    1,490.96x = 2,238.88 × 1,249.36
  4. Step 4: Simplify right side
    1,490.96x = 2,797,167.12
  5. Step 5: Solve for x
    x = 2,797,167.12/1,490.96
  6. Step 6: Final answer
    x = 1,876.08

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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.