Home / 2,346.77-3,515.45-1,115.37

Finding the Fourth Proportional to 2,346.77, 3,515.45 and 1,115.37

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Solution

The fourth proportional to 2,346.77, 3,515.45 and 1,115.37 is: 1,670.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,346.77 : 3,515.45 = 1,115.37 : x
  2. Step 2: Convert to fraction form
    2,346.77/3,515.45 = 1,115.37/x
  3. Step 3: Cross multiply
    2,346.77x = 3,515.45 × 1,115.37
  4. Step 4: Simplify right side
    2,346.77x = 3,921,028.16
  5. Step 5: Solve for x
    x = 3,921,028.16/2,346.77
  6. Step 6: Final answer
    x = 1,670.82

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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.