Home / 5,283.18-7,919.84-1,818

Finding the Fourth Proportional to 5,283.18, 7,919.84 and 1,818

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Solution

The fourth proportional to 5,283.18, 7,919.84 and 1,818 is: 2,725.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,283.18 : 7,919.84 = 1,818 : x
  2. Step 2: Convert to fraction form
    5,283.18/7,919.84 = 1,818/x
  3. Step 3: Cross multiply
    5,283.18x = 7,919.84 × 1,818
  4. Step 4: Simplify right side
    5,283.18x = 14,398,273.67
  5. Step 5: Solve for x
    x = 14,398,273.67/5,283.18
  6. Step 6: Final answer
    x = 2,725.30

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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.