Home / 3,611.10-5,416.50-1,856.10

Finding the Fourth Proportional to 3,611.10, 5,416.50 and 1,856.10

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Solution

The fourth proportional to 3,611.10, 5,416.50 and 1,856.10 is: 2,784.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.10 : 5,416.50 = 1,856.10 : x
  2. Step 2: Convert to fraction form
    3,611.10/5,416.50 = 1,856.10/x
  3. Step 3: Cross multiply
    3,611.10x = 5,416.50 × 1,856.10
  4. Step 4: Simplify right side
    3,611.10x = 10,053,565.65
  5. Step 5: Solve for x
    x = 10,053,565.65/3,611.10
  6. Step 6: Final answer
    x = 2,784.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.