Home / 1,398.32-2,095.86-1,236.32

Finding the Fourth Proportional to 1,398.32, 2,095.86 and 1,236.32

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Solution

The fourth proportional to 1,398.32, 2,095.86 and 1,236.32 is: 1,853.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398.32 : 2,095.86 = 1,236.32 : x
  2. Step 2: Convert to fraction form
    1,398.32/2,095.86 = 1,236.32/x
  3. Step 3: Cross multiply
    1,398.32x = 2,095.86 × 1,236.32
  4. Step 4: Simplify right side
    1,398.32x = 2,591,147.45
  5. Step 5: Solve for x
    x = 2,591,147.45/1,398.32
  6. Step 6: Final answer
    x = 1,853.04

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1.5x scale

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.