Home / 2,126.37-3,189.54-1,158.63

Finding the Fourth Proportional to 2,126.37, 3,189.54 and 1,158.63

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Solution

The fourth proportional to 2,126.37, 3,189.54 and 1,158.63 is: 1,737.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.37 : 3,189.54 = 1,158.63 : x
  2. Step 2: Convert to fraction form
    2,126.37/3,189.54 = 1,158.63/x
  3. Step 3: Cross multiply
    2,126.37x = 3,189.54 × 1,158.63
  4. Step 4: Simplify right side
    2,126.37x = 3,695,496.73
  5. Step 5: Solve for x
    x = 3,695,496.73/2,126.37
  6. Step 6: Final answer
    x = 1,737.94

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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.