Home / 4,218.85-6,332.13-2,140.28

Finding the Fourth Proportional to 4,218.85, 6,332.13 and 2,140.28

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Solution

The fourth proportional to 4,218.85, 6,332.13 and 2,140.28 is: 3,212.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.85 : 6,332.13 = 2,140.28 : x
  2. Step 2: Convert to fraction form
    4,218.85/6,332.13 = 2,140.28/x
  3. Step 3: Cross multiply
    4,218.85x = 6,332.13 × 2,140.28
  4. Step 4: Simplify right side
    4,218.85x = 13,552,520.50
  5. Step 5: Solve for x
    x = 13,552,520.50/4,218.85
  6. Step 6: Final answer
    x = 3,212.38

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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.