Home / 2,318.16-3,475.44-1,147.36

Finding the Fourth Proportional to 2,318.16, 3,475.44 and 1,147.36

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Solution

The fourth proportional to 2,318.16, 3,475.44 and 1,147.36 is: 1,720.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.16 : 3,475.44 = 1,147.36 : x
  2. Step 2: Convert to fraction form
    2,318.16/3,475.44 = 1,147.36/x
  3. Step 3: Cross multiply
    2,318.16x = 3,475.44 × 1,147.36
  4. Step 4: Simplify right side
    2,318.16x = 3,987,572.15
  5. Step 5: Solve for x
    x = 3,987,572.15/2,318.16
  6. Step 6: Final answer
    x = 1,720.14

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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.