Home / 4,145.53-6,221.91-2,145.59

Finding the Fourth Proportional to 4,145.53, 6,221.91 and 2,145.59

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Solution

The fourth proportional to 4,145.53, 6,221.91 and 2,145.59 is: 3,220.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.53 : 6,221.91 = 2,145.59 : x
  2. Step 2: Convert to fraction form
    4,145.53/6,221.91 = 2,145.59/x
  3. Step 3: Cross multiply
    4,145.53x = 6,221.91 × 2,145.59
  4. Step 4: Simplify right side
    4,145.53x = 13,349,668.15
  5. Step 5: Solve for x
    x = 13,349,668.15/4,145.53
  6. Step 6: Final answer
    x = 3,220.26

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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.