Home / 5,321.18-7,979.45-1,810.24

Finding the Fourth Proportional to 5,321.18, 7,979.45 and 1,810.24

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Solution

The fourth proportional to 5,321.18, 7,979.45 and 1,810.24 is: 2,714.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.18 : 7,979.45 = 1,810.24 : x
  2. Step 2: Convert to fraction form
    5,321.18/7,979.45 = 1,810.24/x
  3. Step 3: Cross multiply
    5,321.18x = 7,979.45 × 1,810.24
  4. Step 4: Simplify right side
    5,321.18x = 14,444,690.57
  5. Step 5: Solve for x
    x = 14,444,690.57/5,321.18
  6. Step 6: Final answer
    x = 2,714.56

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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.