Home / 1,622.28-2,238.36-914.17

Finding the Fourth Proportional to 1,622.28, 2,238.36 and 914.17

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Solution

The fourth proportional to 1,622.28, 2,238.36 and 914.17 is: 1,261.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.28 : 2,238.36 = 914.17 : x
  2. Step 2: Convert to fraction form
    1,622.28/2,238.36 = 914.17/x
  3. Step 3: Cross multiply
    1,622.28x = 2,238.36 × 914.17
  4. Step 4: Simplify right side
    1,622.28x = 2,046,241.56
  5. Step 5: Solve for x
    x = 2,046,241.56/1,622.28
  6. Step 6: Final answer
    x = 1,261.34

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1.5x scale

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.