Home / 1,873.19-2,790.15-1,778.42

Finding the Fourth Proportional to 1,873.19, 2,790.15 and 1,778.42

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Solution

The fourth proportional to 1,873.19, 2,790.15 and 1,778.42 is: 2,648.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873.19 : 2,790.15 = 1,778.42 : x
  2. Step 2: Convert to fraction form
    1,873.19/2,790.15 = 1,778.42/x
  3. Step 3: Cross multiply
    1,873.19x = 2,790.15 × 1,778.42
  4. Step 4: Simplify right side
    1,873.19x = 4,962,058.87
  5. Step 5: Solve for x
    x = 4,962,058.87/1,873.19
  6. Step 6: Final answer
    x = 2,648.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.