Home / 2,539.80-3,806.46-1,153.08

Finding the Fourth Proportional to 2,539.80, 3,806.46 and 1,153.08

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Solution

The fourth proportional to 2,539.80, 3,806.46 and 1,153.08 is: 1,728.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,539.80 : 3,806.46 = 1,153.08 : x
  2. Step 2: Convert to fraction form
    2,539.80/3,806.46 = 1,153.08/x
  3. Step 3: Cross multiply
    2,539.80x = 3,806.46 × 1,153.08
  4. Step 4: Simplify right side
    2,539.80x = 4,389,152.90
  5. Step 5: Solve for x
    x = 4,389,152.90/2,539.80
  6. Step 6: Final answer
    x = 1,728.15

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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.