Home / 2,126.42-3,187.45-2,073.06

Finding the Fourth Proportional to 2,126.42, 3,187.45 and 2,073.06

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Solution

The fourth proportional to 2,126.42, 3,187.45 and 2,073.06 is: 3,107.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.42 : 3,187.45 = 2,073.06 : x
  2. Step 2: Convert to fraction form
    2,126.42/3,187.45 = 2,073.06/x
  3. Step 3: Cross multiply
    2,126.42x = 3,187.45 × 2,073.06
  4. Step 4: Simplify right side
    2,126.42x = 6,607,777.69
  5. Step 5: Solve for x
    x = 6,607,777.69/2,126.42
  6. Step 6: Final answer
    x = 3,107.47

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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.