Home / 2,615.12-3,922.34-1,153.93

Finding the Fourth Proportional to 2,615.12, 3,922.34 and 1,153.93

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Solution

The fourth proportional to 2,615.12, 3,922.34 and 1,153.93 is: 1,730.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.12 : 3,922.34 = 1,153.93 : x
  2. Step 2: Convert to fraction form
    2,615.12/3,922.34 = 1,153.93/x
  3. Step 3: Cross multiply
    2,615.12x = 3,922.34 × 1,153.93
  4. Step 4: Simplify right side
    2,615.12x = 4,526,123.05
  5. Step 5: Solve for x
    x = 4,526,123.05/2,615.12
  6. Step 6: Final answer
    x = 1,730.75

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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.