Home / 2,157.90-3,235.20-1,541.22

Finding the Fourth Proportional to 2,157.90, 3,235.20 and 1,541.22

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Solution

The fourth proportional to 2,157.90, 3,235.20 and 1,541.22 is: 2,310.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.90 : 3,235.20 = 1,541.22 : x
  2. Step 2: Convert to fraction form
    2,157.90/3,235.20 = 1,541.22/x
  3. Step 3: Cross multiply
    2,157.90x = 3,235.20 × 1,541.22
  4. Step 4: Simplify right side
    2,157.90x = 4,986,154.94
  5. Step 5: Solve for x
    x = 4,986,154.94/2,157.90
  6. Step 6: Final answer
    x = 2,310.65

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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.