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Finding the Fourth Proportional to 2,129.34, 3,194.12 and 958.08

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Solution

The fourth proportional to 2,129.34, 3,194.12 and 958.08 is: 1,437.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.34 : 3,194.12 = 958.08 : x
  2. Step 2: Convert to fraction form
    2,129.34/3,194.12 = 958.08/x
  3. Step 3: Cross multiply
    2,129.34x = 3,194.12 × 958.08
  4. Step 4: Simplify right side
    2,129.34x = 3,060,222.49
  5. Step 5: Solve for x
    x = 3,060,222.49/2,129.34
  6. Step 6: Final answer
    x = 1,437.17

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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.