Home / 1,811.80-2,501.14-1,363.84

Finding the Fourth Proportional to 1,811.80, 2,501.14 and 1,363.84

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Solution

The fourth proportional to 1,811.80, 2,501.14 and 1,363.84 is: 1,882.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.80 : 2,501.14 = 1,363.84 : x
  2. Step 2: Convert to fraction form
    1,811.80/2,501.14 = 1,363.84/x
  3. Step 3: Cross multiply
    1,811.80x = 2,501.14 × 1,363.84
  4. Step 4: Simplify right side
    1,811.80x = 3,411,161.74
  5. Step 5: Solve for x
    x = 3,411,161.74/1,811.80
  6. Step 6: Final answer
    x = 1,882.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.