Home / 2,687.50-4,031.16-2,220.94

Finding the Fourth Proportional to 2,687.50, 4,031.16 and 2,220.94

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Solution

The fourth proportional to 2,687.50, 4,031.16 and 2,220.94 is: 3,331.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.50 : 4,031.16 = 2,220.94 : x
  2. Step 2: Convert to fraction form
    2,687.50/4,031.16 = 2,220.94/x
  3. Step 3: Cross multiply
    2,687.50x = 4,031.16 × 2,220.94
  4. Step 4: Simplify right side
    2,687.50x = 8,952,964.49
  5. Step 5: Solve for x
    x = 8,952,964.49/2,687.50
  6. Step 6: Final answer
    x = 3,331.34

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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.