Home / 2,126.14-3,187.38-1,031.26

Finding the Fourth Proportional to 2,126.14, 3,187.38 and 1,031.26

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Solution

The fourth proportional to 2,126.14, 3,187.38 and 1,031.26 is: 1,546.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.14 : 3,187.38 = 1,031.26 : x
  2. Step 2: Convert to fraction form
    2,126.14/3,187.38 = 1,031.26/x
  3. Step 3: Cross multiply
    2,126.14x = 3,187.38 × 1,031.26
  4. Step 4: Simplify right side
    2,126.14x = 3,287,017.50
  5. Step 5: Solve for x
    x = 3,287,017.50/2,126.14
  6. Step 6: Final answer
    x = 1,546.00

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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.