Home / 2,870.45-3,961.44-1,611.58

Finding the Fourth Proportional to 2,870.45, 3,961.44 and 1,611.58

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Solution

The fourth proportional to 2,870.45, 3,961.44 and 1,611.58 is: 2,224.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870.45 : 3,961.44 = 1,611.58 : x
  2. Step 2: Convert to fraction form
    2,870.45/3,961.44 = 1,611.58/x
  3. Step 3: Cross multiply
    2,870.45x = 3,961.44 × 1,611.58
  4. Step 4: Simplify right side
    2,870.45x = 6,384,198.51
  5. Step 5: Solve for x
    x = 6,384,198.51/2,870.45
  6. Step 6: Final answer
    x = 2,224.11

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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.