Home / 4,223.72-6,331.12-2,145.26

Finding the Fourth Proportional to 4,223.72, 6,331.12 and 2,145.26

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Solution

The fourth proportional to 4,223.72, 6,331.12 and 2,145.26 is: 3,215.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,223.72 : 6,331.12 = 2,145.26 : x
  2. Step 2: Convert to fraction form
    4,223.72/6,331.12 = 2,145.26/x
  3. Step 3: Cross multiply
    4,223.72x = 6,331.12 × 2,145.26
  4. Step 4: Simplify right side
    4,223.72x = 13,581,898.49
  5. Step 5: Solve for x
    x = 13,581,898.49/4,223.72
  6. Step 6: Final answer
    x = 3,215.62

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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.