Home / 5,820.30-8,730.60-2,125.28

Finding the Fourth Proportional to 5,820.30, 8,730.60 and 2,125.28

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Solution

The fourth proportional to 5,820.30, 8,730.60 and 2,125.28 is: 3,187.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,820.30 : 8,730.60 = 2,125.28 : x
  2. Step 2: Convert to fraction form
    5,820.30/8,730.60 = 2,125.28/x
  3. Step 3: Cross multiply
    5,820.30x = 8,730.60 × 2,125.28
  4. Step 4: Simplify right side
    5,820.30x = 18,554,991.39
  5. Step 5: Solve for x
    x = 18,554,991.39/5,820.30
  6. Step 6: Final answer
    x = 3,187.98

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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.