Home / 2,331.20-3,217.16-1,283.36

Finding the Fourth Proportional to 2,331.20, 3,217.16 and 1,283.36

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Solution

The fourth proportional to 2,331.20, 3,217.16 and 1,283.36 is: 1,771.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.20 : 3,217.16 = 1,283.36 : x
  2. Step 2: Convert to fraction form
    2,331.20/3,217.16 = 1,283.36/x
  3. Step 3: Cross multiply
    2,331.20x = 3,217.16 × 1,283.36
  4. Step 4: Simplify right side
    2,331.20x = 4,128,774.46
  5. Step 5: Solve for x
    x = 4,128,774.46/2,331.20
  6. Step 6: Final answer
    x = 1,771.09

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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.