Home / 5,118.19-7,055.43-4,172.54

Finding the Fourth Proportional to 5,118.19, 7,055.43 and 4,172.54

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Solution

The fourth proportional to 5,118.19, 7,055.43 and 4,172.54 is: 5,751.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.19 : 7,055.43 = 4,172.54 : x
  2. Step 2: Convert to fraction form
    5,118.19/7,055.43 = 4,172.54/x
  3. Step 3: Cross multiply
    5,118.19x = 7,055.43 × 4,172.54
  4. Step 4: Simplify right side
    5,118.19x = 29,439,044.55
  5. Step 5: Solve for x
    x = 29,439,044.55/5,118.19
  6. Step 6: Final answer
    x = 5,751.85

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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.