Home / 3,175.91-4,740.71-2,915.90

Finding the Fourth Proportional to 3,175.91, 4,740.71 and 2,915.90

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Solution

The fourth proportional to 3,175.91, 4,740.71 and 2,915.90 is: 4,352.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.91 : 4,740.71 = 2,915.90 : x
  2. Step 2: Convert to fraction form
    3,175.91/4,740.71 = 2,915.90/x
  3. Step 3: Cross multiply
    3,175.91x = 4,740.71 × 2,915.90
  4. Step 4: Simplify right side
    3,175.91x = 13,823,436.29
  5. Step 5: Solve for x
    x = 13,823,436.29/3,175.91
  6. Step 6: Final answer
    x = 4,352.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.