Home / 1,643.42-2,267.20-1,083.18

Finding the Fourth Proportional to 1,643.42, 2,267.20 and 1,083.18

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Solution

The fourth proportional to 1,643.42, 2,267.20 and 1,083.18 is: 1,494.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.42 : 2,267.20 = 1,083.18 : x
  2. Step 2: Convert to fraction form
    1,643.42/2,267.20 = 1,083.18/x
  3. Step 3: Cross multiply
    1,643.42x = 2,267.20 × 1,083.18
  4. Step 4: Simplify right side
    1,643.42x = 2,455,785.70
  5. Step 5: Solve for x
    x = 2,455,785.70/1,643.42
  6. Step 6: Final answer
    x = 1,494.31

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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.