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Finding the Fourth Proportional to 2,070.56, 3,104.87 and 753.39

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Solution

The fourth proportional to 2,070.56, 3,104.87 and 753.39 is: 1,129.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.56 : 3,104.87 = 753.39 : x
  2. Step 2: Convert to fraction form
    2,070.56/3,104.87 = 753.39/x
  3. Step 3: Cross multiply
    2,070.56x = 3,104.87 × 753.39
  4. Step 4: Simplify right side
    2,070.56x = 2,339,174.24
  5. Step 5: Solve for x
    x = 2,339,174.24/2,070.56
  6. Step 6: Final answer
    x = 1,129.73

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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.