Home / 2,236.30-3,087.64-1,397.18

Finding the Fourth Proportional to 2,236.30, 3,087.64 and 1,397.18

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Solution

The fourth proportional to 2,236.30, 3,087.64 and 1,397.18 is: 1,929.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,236.30 : 3,087.64 = 1,397.18 : x
  2. Step 2: Convert to fraction form
    2,236.30/3,087.64 = 1,397.18/x
  3. Step 3: Cross multiply
    2,236.30x = 3,087.64 × 1,397.18
  4. Step 4: Simplify right side
    2,236.30x = 4,313,988.86
  5. Step 5: Solve for x
    x = 4,313,988.86/2,236.30
  6. Step 6: Final answer
    x = 1,929.07

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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.