Home / 4,290.20-6,431.94-1,695.08

Finding the Fourth Proportional to 4,290.20, 6,431.94 and 1,695.08

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Solution

The fourth proportional to 4,290.20, 6,431.94 and 1,695.08 is: 2,541.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.20 : 6,431.94 = 1,695.08 : x
  2. Step 2: Convert to fraction form
    4,290.20/6,431.94 = 1,695.08/x
  3. Step 3: Cross multiply
    4,290.20x = 6,431.94 × 1,695.08
  4. Step 4: Simplify right side
    4,290.20x = 10,902,652.86
  5. Step 5: Solve for x
    x = 10,902,652.86/4,290.20
  6. Step 6: Final answer
    x = 2,541.29

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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.