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Finding the Fourth Proportional to 5,073.78, 7,610.41 and 1,786.90

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Solution

The fourth proportional to 5,073.78, 7,610.41 and 1,786.90 is: 2,680.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,073.78 : 7,610.41 = 1,786.90 : x
  2. Step 2: Convert to fraction form
    5,073.78/7,610.41 = 1,786.90/x
  3. Step 3: Cross multiply
    5,073.78x = 7,610.41 × 1,786.90
  4. Step 4: Simplify right side
    5,073.78x = 13,599,041.63
  5. Step 5: Solve for x
    x = 13,599,041.63/5,073.78
  6. Step 6: Final answer
    x = 2,680.26

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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.