Home / 2,331.66-3,217.33-1,387.44

Finding the Fourth Proportional to 2,331.66, 3,217.33 and 1,387.44

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Solution

The fourth proportional to 2,331.66, 3,217.33 and 1,387.44 is: 1,914.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.66 : 3,217.33 = 1,387.44 : x
  2. Step 2: Convert to fraction form
    2,331.66/3,217.33 = 1,387.44/x
  3. Step 3: Cross multiply
    2,331.66x = 3,217.33 × 1,387.44
  4. Step 4: Simplify right side
    2,331.66x = 4,463,852.34
  5. Step 5: Solve for x
    x = 4,463,852.34/2,331.66
  6. Step 6: Final answer
    x = 1,914.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.