Home / 2,345.26-3,518.91-1,113.54

Finding the Fourth Proportional to 2,345.26, 3,518.91 and 1,113.54

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Solution

The fourth proportional to 2,345.26, 3,518.91 and 1,113.54 is: 1,670.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.26 : 3,518.91 = 1,113.54 : x
  2. Step 2: Convert to fraction form
    2,345.26/3,518.91 = 1,113.54/x
  3. Step 3: Cross multiply
    2,345.26x = 3,518.91 × 1,113.54
  4. Step 4: Simplify right side
    2,345.26x = 3,918,447.04
  5. Step 5: Solve for x
    x = 3,918,447.04/2,345.26
  6. Step 6: Final answer
    x = 1,670.79

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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.