Home / 1,622.32-2,238.60-914.11

Finding the Fourth Proportional to 1,622.32, 2,238.60 and 914.11

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Solution

The fourth proportional to 1,622.32, 2,238.60 and 914.11 is: 1,261.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.32 : 2,238.60 = 914.11 : x
  2. Step 2: Convert to fraction form
    1,622.32/2,238.60 = 914.11/x
  3. Step 3: Cross multiply
    1,622.32x = 2,238.60 × 914.11
  4. Step 4: Simplify right side
    1,622.32x = 2,046,321.05
  5. Step 5: Solve for x
    x = 2,046,321.05/1,622.32
  6. Step 6: Final answer
    x = 1,261.36

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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.