Home / 4,145.62-5,722.16-3,312.13

Finding the Fourth Proportional to 4,145.62, 5,722.16 and 3,312.13

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Solution

The fourth proportional to 4,145.62, 5,722.16 and 3,312.13 is: 4,571.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.62 : 5,722.16 = 3,312.13 : x
  2. Step 2: Convert to fraction form
    4,145.62/5,722.16 = 3,312.13/x
  3. Step 3: Cross multiply
    4,145.62x = 5,722.16 × 3,312.13
  4. Step 4: Simplify right side
    4,145.62x = 18,952,537.80
  5. Step 5: Solve for x
    x = 18,952,537.80/4,145.62
  6. Step 6: Final answer
    x = 4,571.70

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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.