Home / 4,159.86-5,738.45-2,815.51

Finding the Fourth Proportional to 4,159.86, 5,738.45 and 2,815.51

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Solution

The fourth proportional to 4,159.86, 5,738.45 and 2,815.51 is: 3,883.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,159.86 : 5,738.45 = 2,815.51 : x
  2. Step 2: Convert to fraction form
    4,159.86/5,738.45 = 2,815.51/x
  3. Step 3: Cross multiply
    4,159.86x = 5,738.45 × 2,815.51
  4. Step 4: Simplify right side
    4,159.86x = 16,156,645.70
  5. Step 5: Solve for x
    x = 16,156,645.70/4,159.86
  6. Step 6: Final answer
    x = 3,883.94

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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.