Home / 2,331.45-3,217.40-1,283.50

Finding the Fourth Proportional to 2,331.45, 3,217.40 and 1,283.50

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Solution

The fourth proportional to 2,331.45, 3,217.40 and 1,283.50 is: 1,771.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.45 : 3,217.40 = 1,283.50 : x
  2. Step 2: Convert to fraction form
    2,331.45/3,217.40 = 1,283.50/x
  3. Step 3: Cross multiply
    2,331.45x = 3,217.40 × 1,283.50
  4. Step 4: Simplify right side
    2,331.45x = 4,129,532.90
  5. Step 5: Solve for x
    x = 4,129,532.90/2,331.45
  6. Step 6: Final answer
    x = 1,771.23

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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.