Home / 3,845.90-5,302.55-3,208.13

Finding the Fourth Proportional to 3,845.90, 5,302.55 and 3,208.13

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Solution

The fourth proportional to 3,845.90, 5,302.55 and 3,208.13 is: 4,423.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.90 : 5,302.55 = 3,208.13 : x
  2. Step 2: Convert to fraction form
    3,845.90/5,302.55 = 3,208.13/x
  3. Step 3: Cross multiply
    3,845.90x = 5,302.55 × 3,208.13
  4. Step 4: Simplify right side
    3,845.90x = 17,011,227.18
  5. Step 5: Solve for x
    x = 17,011,227.18/3,845.90
  6. Step 6: Final answer
    x = 4,423.22

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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.