Home / 2,292.16-3,438.24-1,317.64

Finding the Fourth Proportional to 2,292.16, 3,438.24 and 1,317.64

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Solution

The fourth proportional to 2,292.16, 3,438.24 and 1,317.64 is: 1,976.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,292.16 : 3,438.24 = 1,317.64 : x
  2. Step 2: Convert to fraction form
    2,292.16/3,438.24 = 1,317.64/x
  3. Step 3: Cross multiply
    2,292.16x = 3,438.24 × 1,317.64
  4. Step 4: Simplify right side
    2,292.16x = 4,530,362.55
  5. Step 5: Solve for x
    x = 4,530,362.55/2,292.16
  6. Step 6: Final answer
    x = 1,976.46

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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.