Home / 3,175.61-4,381.31-2,057.40

Finding the Fourth Proportional to 3,175.61, 4,381.31 and 2,057.40

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Solution

The fourth proportional to 3,175.61, 4,381.31 and 2,057.40 is: 2,838.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.61 : 4,381.31 = 2,057.40 : x
  2. Step 2: Convert to fraction form
    3,175.61/4,381.31 = 2,057.40/x
  3. Step 3: Cross multiply
    3,175.61x = 4,381.31 × 2,057.40
  4. Step 4: Simplify right side
    3,175.61x = 9,014,096.91
  5. Step 5: Solve for x
    x = 9,014,096.91/3,175.61
  6. Step 6: Final answer
    x = 2,838.54

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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.