Home / 1,874.85-2,809.60-1,377.36

Finding the Fourth Proportional to 1,874.85, 2,809.60 and 1,377.36

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Solution

The fourth proportional to 1,874.85, 2,809.60 and 1,377.36 is: 2,064.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.85 : 2,809.60 = 1,377.36 : x
  2. Step 2: Convert to fraction form
    1,874.85/2,809.60 = 1,377.36/x
  3. Step 3: Cross multiply
    1,874.85x = 2,809.60 × 1,377.36
  4. Step 4: Simplify right side
    1,874.85x = 3,869,831.09
  5. Step 5: Solve for x
    x = 3,869,831.09/1,874.85
  6. Step 6: Final answer
    x = 2,064.07

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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.