Home / 4,218.69-5,821.53-2,540.64

Finding the Fourth Proportional to 4,218.69, 5,821.53 and 2,540.64

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Solution

The fourth proportional to 4,218.69, 5,821.53 and 2,540.64 is: 3,505.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.69 : 5,821.53 = 2,540.64 : x
  2. Step 2: Convert to fraction form
    4,218.69/5,821.53 = 2,540.64/x
  3. Step 3: Cross multiply
    4,218.69x = 5,821.53 × 2,540.64
  4. Step 4: Simplify right side
    4,218.69x = 14,790,411.98
  5. Step 5: Solve for x
    x = 14,790,411.98/4,218.69
  6. Step 6: Final answer
    x = 3,505.93

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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.