Home / 5,215.02-7,821.58-2,094.90

Finding the Fourth Proportional to 5,215.02, 7,821.58 and 2,094.90

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Solution

The fourth proportional to 5,215.02, 7,821.58 and 2,094.90 is: 3,141.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.02 : 7,821.58 = 2,094.90 : x
  2. Step 2: Convert to fraction form
    5,215.02/7,821.58 = 2,094.90/x
  3. Step 3: Cross multiply
    5,215.02x = 7,821.58 × 2,094.90
  4. Step 4: Simplify right side
    5,215.02x = 16,385,427.94
  5. Step 5: Solve for x
    x = 16,385,427.94/5,215.02
  6. Step 6: Final answer
    x = 3,141.97

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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.