Home / 3,381.60-4,648.69-2,907.76

Finding the Fourth Proportional to 3,381.60, 4,648.69 and 2,907.76

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Solution

The fourth proportional to 3,381.60, 4,648.69 and 2,907.76 is: 3,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.60 : 4,648.69 = 2,907.76 : x
  2. Step 2: Convert to fraction form
    3,381.60/4,648.69 = 2,907.76/x
  3. Step 3: Cross multiply
    3,381.60x = 4,648.69 × 2,907.76
  4. Step 4: Simplify right side
    3,381.60x = 13,517,274.83
  5. Step 5: Solve for x
    x = 13,517,274.83/3,381.60
  6. Step 6: Final answer
    x = 3,997.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.