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Finding the Fourth Proportional to 2,314.12, 3,471.77 and 670.79

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Solution

The fourth proportional to 2,314.12, 3,471.77 and 670.79 is: 1,006.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,314.12 : 3,471.77 = 670.79 : x
  2. Step 2: Convert to fraction form
    2,314.12/3,471.77 = 670.79/x
  3. Step 3: Cross multiply
    2,314.12x = 3,471.77 × 670.79
  4. Step 4: Simplify right side
    2,314.12x = 2,328,828.60
  5. Step 5: Solve for x
    x = 2,328,828.60/2,314.12
  6. Step 6: Final answer
    x = 1,006.36

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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.