Home / 5,390.55-7,438.43-3,032.64

Finding the Fourth Proportional to 5,390.55, 7,438.43 and 3,032.64

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Solution

The fourth proportional to 5,390.55, 7,438.43 and 3,032.64 is: 4,184.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.55 : 7,438.43 = 3,032.64 : x
  2. Step 2: Convert to fraction form
    5,390.55/7,438.43 = 3,032.64/x
  3. Step 3: Cross multiply
    5,390.55x = 7,438.43 × 3,032.64
  4. Step 4: Simplify right side
    5,390.55x = 22,558,087.94
  5. Step 5: Solve for x
    x = 22,558,087.94/5,390.55
  6. Step 6: Final answer
    x = 4,184.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.