Home / 2,317.11-3,474.95-777.75

Finding the Fourth Proportional to 2,317.11, 3,474.95 and 777.75

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Solution

The fourth proportional to 2,317.11, 3,474.95 and 777.75 is: 1,166.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.11 : 3,474.95 = 777.75 : x
  2. Step 2: Convert to fraction form
    2,317.11/3,474.95 = 777.75/x
  3. Step 3: Cross multiply
    2,317.11x = 3,474.95 × 777.75
  4. Step 4: Simplify right side
    2,317.11x = 2,702,638.47
  5. Step 5: Solve for x
    x = 2,702,638.47/2,317.11
  6. Step 6: Final answer
    x = 1,166.38

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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.