Home / 5,378.31-8,070.53-2,090.97

Finding the Fourth Proportional to 5,378.31, 8,070.53 and 2,090.97

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Solution

The fourth proportional to 5,378.31, 8,070.53 and 2,090.97 is: 3,137.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.31 : 8,070.53 = 2,090.97 : x
  2. Step 2: Convert to fraction form
    5,378.31/8,070.53 = 2,090.97/x
  3. Step 3: Cross multiply
    5,378.31x = 8,070.53 × 2,090.97
  4. Step 4: Simplify right side
    5,378.31x = 16,875,236.11
  5. Step 5: Solve for x
    x = 16,875,236.11/5,378.31
  6. Step 6: Final answer
    x = 3,137.65

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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.