Home / 2,126.12-3,187.82-1,303.26

Finding the Fourth Proportional to 2,126.12, 3,187.82 and 1,303.26

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Solution

The fourth proportional to 2,126.12, 3,187.82 and 1,303.26 is: 1,954.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.12 : 3,187.82 = 1,303.26 : x
  2. Step 2: Convert to fraction form
    2,126.12/3,187.82 = 1,303.26/x
  3. Step 3: Cross multiply
    2,126.12x = 3,187.82 × 1,303.26
  4. Step 4: Simplify right side
    2,126.12x = 4,154,558.29
  5. Step 5: Solve for x
    x = 4,154,558.29/2,126.12
  6. Step 6: Final answer
    x = 1,954.06

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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.