Home / 1,801.45-2,486.13-1,138.26

Finding the Fourth Proportional to 1,801.45, 2,486.13 and 1,138.26

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Solution

The fourth proportional to 1,801.45, 2,486.13 and 1,138.26 is: 1,570.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.45 : 2,486.13 = 1,138.26 : x
  2. Step 2: Convert to fraction form
    1,801.45/2,486.13 = 1,138.26/x
  3. Step 3: Cross multiply
    1,801.45x = 2,486.13 × 1,138.26
  4. Step 4: Simplify right side
    1,801.45x = 2,829,867.39
  5. Step 5: Solve for x
    x = 2,829,867.39/1,801.45
  6. Step 6: Final answer
    x = 1,570.88

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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.