Home / 2,539.08-3,806.15-977.85

Finding the Fourth Proportional to 2,539.08, 3,806.15 and 977.85

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Solution

The fourth proportional to 2,539.08, 3,806.15 and 977.85 is: 1,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,539.08 : 3,806.15 = 977.85 : x
  2. Step 2: Convert to fraction form
    2,539.08/3,806.15 = 977.85/x
  3. Step 3: Cross multiply
    2,539.08x = 3,806.15 × 977.85
  4. Step 4: Simplify right side
    2,539.08x = 3,721,838.89
  5. Step 5: Solve for x
    x = 3,721,838.89/2,539.08
  6. Step 6: Final answer
    x = 1,465.82

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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.