Home / 5,425.72-7,485.01-3,187.55

Finding the Fourth Proportional to 5,425.72, 7,485.01 and 3,187.55

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Solution

The fourth proportional to 5,425.72, 7,485.01 and 3,187.55 is: 4,397.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.72 : 7,485.01 = 3,187.55 : x
  2. Step 2: Convert to fraction form
    5,425.72/7,485.01 = 3,187.55/x
  3. Step 3: Cross multiply
    5,425.72x = 7,485.01 × 3,187.55
  4. Step 4: Simplify right side
    5,425.72x = 23,858,854.37
  5. Step 5: Solve for x
    x = 23,858,854.37/5,425.72
  6. Step 6: Final answer
    x = 4,397.36

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1.5x scale

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.