Home / 1,813.90-2,720.27-1,119.53

Finding the Fourth Proportional to 1,813.90, 2,720.27 and 1,119.53

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Solution

The fourth proportional to 1,813.90, 2,720.27 and 1,119.53 is: 1,678.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.90 : 2,720.27 = 1,119.53 : x
  2. Step 2: Convert to fraction form
    1,813.90/2,720.27 = 1,119.53/x
  3. Step 3: Cross multiply
    1,813.90x = 2,720.27 × 1,119.53
  4. Step 4: Simplify right side
    1,813.90x = 3,045,404.67
  5. Step 5: Solve for x
    x = 3,045,404.67/1,813.90
  6. Step 6: Final answer
    x = 1,678.93

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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.