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Finding the Fourth Proportional to 2,346.39, 3,519.59 and 786.11

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Solution

The fourth proportional to 2,346.39, 3,519.59 and 786.11 is: 1,179.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,346.39 : 3,519.59 = 786.11 : x
  2. Step 2: Convert to fraction form
    2,346.39/3,519.59 = 786.11/x
  3. Step 3: Cross multiply
    2,346.39x = 3,519.59 × 786.11
  4. Step 4: Simplify right side
    2,346.39x = 2,766,763.37
  5. Step 5: Solve for x
    x = 2,766,763.37/2,346.39
  6. Step 6: Final answer
    x = 1,179.16

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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.