Home / 2,345.20-3,517.94-785.14

Finding the Fourth Proportional to 2,345.20, 3,517.94 and 785.14

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Solution

The fourth proportional to 2,345.20, 3,517.94 and 785.14 is: 1,177.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.20 : 3,517.94 = 785.14 : x
  2. Step 2: Convert to fraction form
    2,345.20/3,517.94 = 785.14/x
  3. Step 3: Cross multiply
    2,345.20x = 3,517.94 × 785.14
  4. Step 4: Simplify right side
    2,345.20x = 2,762,068.58
  5. Step 5: Solve for x
    x = 2,762,068.58/2,345.20
  6. Step 6: Final answer
    x = 1,177.76

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1.5x scale

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.