Home / 1,438.82-2,159.07-1,347.70

Finding the Fourth Proportional to 1,438.82, 2,159.07 and 1,347.70

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Solution

The fourth proportional to 1,438.82, 2,159.07 and 1,347.70 is: 2,022.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438.82 : 2,159.07 = 1,347.70 : x
  2. Step 2: Convert to fraction form
    1,438.82/2,159.07 = 1,347.70/x
  3. Step 3: Cross multiply
    1,438.82x = 2,159.07 × 1,347.70
  4. Step 4: Simplify right side
    1,438.82x = 2,909,778.64
  5. Step 5: Solve for x
    x = 2,909,778.64/1,438.82
  6. Step 6: Final answer
    x = 2,022.34

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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.