Home / 1,802.29-2,689.34-1,427.85

Finding the Fourth Proportional to 1,802.29, 2,689.34 and 1,427.85

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Solution

The fourth proportional to 1,802.29, 2,689.34 and 1,427.85 is: 2,130.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,802.29 : 2,689.34 = 1,427.85 : x
  2. Step 2: Convert to fraction form
    1,802.29/2,689.34 = 1,427.85/x
  3. Step 3: Cross multiply
    1,802.29x = 2,689.34 × 1,427.85
  4. Step 4: Simplify right side
    1,802.29x = 3,839,974.12
  5. Step 5: Solve for x
    x = 3,839,974.12/1,802.29
  6. Step 6: Final answer
    x = 2,130.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.