Home / 5,415.30-8,114.31-3,465.90

Finding the Fourth Proportional to 5,415.30, 8,114.31 and 3,465.90

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Solution

The fourth proportional to 5,415.30, 8,114.31 and 3,465.90 is: 5,193.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.30 : 8,114.31 = 3,465.90 : x
  2. Step 2: Convert to fraction form
    5,415.30/8,114.31 = 3,465.90/x
  3. Step 3: Cross multiply
    5,415.30x = 8,114.31 × 3,465.90
  4. Step 4: Simplify right side
    5,415.30x = 28,123,387.03
  5. Step 5: Solve for x
    x = 28,123,387.03/5,415.30
  6. Step 6: Final answer
    x = 5,193.32

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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.