Home / 3,085.31-4,253.42-2,611.32

Finding the Fourth Proportional to 3,085.31, 4,253.42 and 2,611.32

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Solution

The fourth proportional to 3,085.31, 4,253.42 and 2,611.32 is: 3,599.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.31 : 4,253.42 = 2,611.32 : x
  2. Step 2: Convert to fraction form
    3,085.31/4,253.42 = 2,611.32/x
  3. Step 3: Cross multiply
    3,085.31x = 4,253.42 × 2,611.32
  4. Step 4: Simplify right side
    3,085.31x = 11,107,027.66
  5. Step 5: Solve for x
    x = 11,107,027.66/3,085.31
  6. Step 6: Final answer
    x = 3,599.98

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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.