Home / 5,815.83-8,724.56-2,117.37

Finding the Fourth Proportional to 5,815.83, 8,724.56 and 2,117.37

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Solution

The fourth proportional to 5,815.83, 8,724.56 and 2,117.37 is: 3,176.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.83 : 8,724.56 = 2,117.37 : x
  2. Step 2: Convert to fraction form
    5,815.83/8,724.56 = 2,117.37/x
  3. Step 3: Cross multiply
    5,815.83x = 8,724.56 × 2,117.37
  4. Step 4: Simplify right side
    5,815.83x = 18,473,111.02
  5. Step 5: Solve for x
    x = 18,473,111.02/5,815.83
  6. Step 6: Final answer
    x = 3,176.35

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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.