Home / 5,216.40-7,822.04-2,580.86

Finding the Fourth Proportional to 5,216.40, 7,822.04 and 2,580.86

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Solution

The fourth proportional to 5,216.40, 7,822.04 and 2,580.86 is: 3,870.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.40 : 7,822.04 = 2,580.86 : x
  2. Step 2: Convert to fraction form
    5,216.40/7,822.04 = 2,580.86/x
  3. Step 3: Cross multiply
    5,216.40x = 7,822.04 × 2,580.86
  4. Step 4: Simplify right side
    5,216.40x = 20,187,590.15
  5. Step 5: Solve for x
    x = 20,187,590.15/5,216.40
  6. Step 6: Final answer
    x = 3,870.02

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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.