Home / 4,218.90-6,332.22-2,140.38

Finding the Fourth Proportional to 4,218.90, 6,332.22 and 2,140.38

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Solution

The fourth proportional to 4,218.90, 6,332.22 and 2,140.38 is: 3,212.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.90 : 6,332.22 = 2,140.38 : x
  2. Step 2: Convert to fraction form
    4,218.90/6,332.22 = 2,140.38/x
  3. Step 3: Cross multiply
    4,218.90x = 6,332.22 × 2,140.38
  4. Step 4: Simplify right side
    4,218.90x = 13,553,357.04
  5. Step 5: Solve for x
    x = 13,553,357.04/4,218.90
  6. Step 6: Final answer
    x = 3,212.53

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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.