Home / 2,870.58-3,961.35-1,611.65

Finding the Fourth Proportional to 2,870.58, 3,961.35 and 1,611.65

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Solution

The fourth proportional to 2,870.58, 3,961.35 and 1,611.65 is: 2,224.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870.58 : 3,961.35 = 1,611.65 : x
  2. Step 2: Convert to fraction form
    2,870.58/3,961.35 = 1,611.65/x
  3. Step 3: Cross multiply
    2,870.58x = 3,961.35 × 1,611.65
  4. Step 4: Simplify right side
    2,870.58x = 6,384,289.92
  5. Step 5: Solve for x
    x = 6,384,289.92/2,870.58
  6. Step 6: Final answer
    x = 2,224.04

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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.