Home / 1,816.32-2,725.52-1,511.86

Finding the Fourth Proportional to 1,816.32, 2,725.52 and 1,511.86

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Solution

The fourth proportional to 1,816.32, 2,725.52 and 1,511.86 is: 2,268.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.32 : 2,725.52 = 1,511.86 : x
  2. Step 2: Convert to fraction form
    1,816.32/2,725.52 = 1,511.86/x
  3. Step 3: Cross multiply
    1,816.32x = 2,725.52 × 1,511.86
  4. Step 4: Simplify right side
    1,816.32x = 4,120,595.40
  5. Step 5: Solve for x
    x = 4,120,595.40/1,816.32
  6. Step 6: Final answer
    x = 2,268.65

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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.