Home / 1,820.11-2,724-1,127.23

Finding the Fourth Proportional to 1,820.11, 2,724 and 1,127.23

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Solution

The fourth proportional to 1,820.11, 2,724 and 1,127.23 is: 1,687.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.11 : 2,724 = 1,127.23 : x
  2. Step 2: Convert to fraction form
    1,820.11/2,724 = 1,127.23/x
  3. Step 3: Cross multiply
    1,820.11x = 2,724 × 1,127.23
  4. Step 4: Simplify right side
    1,820.11x = 3,070,574.52
  5. Step 5: Solve for x
    x = 3,070,574.52/1,820.11
  6. Step 6: Final answer
    x = 1,687.03

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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.