Home / 3,375.12-5,058.54-1,915.50

Finding the Fourth Proportional to 3,375.12, 5,058.54 and 1,915.50

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Solution

The fourth proportional to 3,375.12, 5,058.54 and 1,915.50 is: 2,870.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375.12 : 5,058.54 = 1,915.50 : x
  2. Step 2: Convert to fraction form
    3,375.12/5,058.54 = 1,915.50/x
  3. Step 3: Cross multiply
    3,375.12x = 5,058.54 × 1,915.50
  4. Step 4: Simplify right side
    3,375.12x = 9,689,633.37
  5. Step 5: Solve for x
    x = 9,689,633.37/3,375.12
  6. Step 6: Final answer
    x = 2,870.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.