Home / 3,775.95-5,211.36-3,145.59

Finding the Fourth Proportional to 3,775.95, 5,211.36 and 3,145.59

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Solution

The fourth proportional to 3,775.95, 5,211.36 and 3,145.59 is: 4,341.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,775.95 : 5,211.36 = 3,145.59 : x
  2. Step 2: Convert to fraction form
    3,775.95/5,211.36 = 3,145.59/x
  3. Step 3: Cross multiply
    3,775.95x = 5,211.36 × 3,145.59
  4. Step 4: Simplify right side
    3,775.95x = 16,392,801.90
  5. Step 5: Solve for x
    x = 16,392,801.90/3,775.95
  6. Step 6: Final answer
    x = 4,341.37

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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.