Home / 3,145.76-4,339.17-2,611.53

Finding the Fourth Proportional to 3,145.76, 4,339.17 and 2,611.53

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Solution

The fourth proportional to 3,145.76, 4,339.17 and 2,611.53 is: 3,602.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.76 : 4,339.17 = 2,611.53 : x
  2. Step 2: Convert to fraction form
    3,145.76/4,339.17 = 2,611.53/x
  3. Step 3: Cross multiply
    3,145.76x = 4,339.17 × 2,611.53
  4. Step 4: Simplify right side
    3,145.76x = 11,331,872.63
  5. Step 5: Solve for x
    x = 11,331,872.63/3,145.76
  6. Step 6: Final answer
    x = 3,602.27

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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.