Home / 2,637.15-3,953.45-1,249.78

Finding the Fourth Proportional to 2,637.15, 3,953.45 and 1,249.78

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Solution

The fourth proportional to 2,637.15, 3,953.45 and 1,249.78 is: 1,873.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.15 : 3,953.45 = 1,249.78 : x
  2. Step 2: Convert to fraction form
    2,637.15/3,953.45 = 1,249.78/x
  3. Step 3: Cross multiply
    2,637.15x = 3,953.45 × 1,249.78
  4. Step 4: Simplify right side
    2,637.15x = 4,940,950.81
  5. Step 5: Solve for x
    x = 4,940,950.81/2,637.15
  6. Step 6: Final answer
    x = 1,873.59

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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.