Home / 5,542.30-7,643.28-4,129.48

Finding the Fourth Proportional to 5,542.30, 7,643.28 and 4,129.48

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Solution

The fourth proportional to 5,542.30, 7,643.28 and 4,129.48 is: 5,694.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,542.30 : 7,643.28 = 4,129.48 : x
  2. Step 2: Convert to fraction form
    5,542.30/7,643.28 = 4,129.48/x
  3. Step 3: Cross multiply
    5,542.30x = 7,643.28 × 4,129.48
  4. Step 4: Simplify right side
    5,542.30x = 31,562,771.89
  5. Step 5: Solve for x
    x = 31,562,771.89/5,542.30
  6. Step 6: Final answer
    x = 5,694.89

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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.