Home / 4,220.39-6,292.58-3,869.10

Finding the Fourth Proportional to 4,220.39, 6,292.58 and 3,869.10

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Solution

The fourth proportional to 4,220.39, 6,292.58 and 3,869.10 is: 5,768.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.39 : 6,292.58 = 3,869.10 : x
  2. Step 2: Convert to fraction form
    4,220.39/6,292.58 = 3,869.10/x
  3. Step 3: Cross multiply
    4,220.39x = 6,292.58 × 3,869.10
  4. Step 4: Simplify right side
    4,220.39x = 24,346,621.28
  5. Step 5: Solve for x
    x = 24,346,621.28/4,220.39
  6. Step 6: Final answer
    x = 5,768.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.