Home / 1,874.41-2,811.30-1,324.93

Finding the Fourth Proportional to 1,874.41, 2,811.30 and 1,324.93

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Solution

The fourth proportional to 1,874.41, 2,811.30 and 1,324.93 is: 1,987.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.41 : 2,811.30 = 1,324.93 : x
  2. Step 2: Convert to fraction form
    1,874.41/2,811.30 = 1,324.93/x
  3. Step 3: Cross multiply
    1,874.41x = 2,811.30 × 1,324.93
  4. Step 4: Simplify right side
    1,874.41x = 3,724,775.71
  5. Step 5: Solve for x
    x = 3,724,775.71/1,874.41
  6. Step 6: Final answer
    x = 1,987.17

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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.