Home / 2,869.86-3,960.58-1,611.02

Finding the Fourth Proportional to 2,869.86, 3,960.58 and 1,611.02

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Solution

The fourth proportional to 2,869.86, 3,960.58 and 1,611.02 is: 2,223.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.86 : 3,960.58 = 1,611.02 : x
  2. Step 2: Convert to fraction form
    2,869.86/3,960.58 = 1,611.02/x
  3. Step 3: Cross multiply
    2,869.86x = 3,960.58 × 1,611.02
  4. Step 4: Simplify right side
    2,869.86x = 6,380,573.59
  5. Step 5: Solve for x
    x = 6,380,573.59/2,869.86
  6. Step 6: Final answer
    x = 2,223.30

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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.