Home / 3,818.30-5,725.64-1,479.40

Finding the Fourth Proportional to 3,818.30, 5,725.64 and 1,479.40

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Solution

The fourth proportional to 3,818.30, 5,725.64 and 1,479.40 is: 2,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.30 : 5,725.64 = 1,479.40 : x
  2. Step 2: Convert to fraction form
    3,818.30/5,725.64 = 1,479.40/x
  3. Step 3: Cross multiply
    3,818.30x = 5,725.64 × 1,479.40
  4. Step 4: Simplify right side
    3,818.30x = 8,470,511.82
  5. Step 5: Solve for x
    x = 8,470,511.82/3,818.30
  6. Step 6: Final answer
    x = 2,218.40

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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.