Home / 3,011.87-4,156.41-1,685.66

Finding the Fourth Proportional to 3,011.87, 4,156.41 and 1,685.66

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Solution

The fourth proportional to 3,011.87, 4,156.41 and 1,685.66 is: 2,326.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.87 : 4,156.41 = 1,685.66 : x
  2. Step 2: Convert to fraction form
    3,011.87/4,156.41 = 1,685.66/x
  3. Step 3: Cross multiply
    3,011.87x = 4,156.41 × 1,685.66
  4. Step 4: Simplify right side
    3,011.87x = 7,006,273.30
  5. Step 5: Solve for x
    x = 7,006,273.30/3,011.87
  6. Step 6: Final answer
    x = 2,326.22

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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.