Home / 5,168.36-7,133.48-3,180.64

Finding the Fourth Proportional to 5,168.36, 7,133.48 and 3,180.64

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Solution

The fourth proportional to 5,168.36, 7,133.48 and 3,180.64 is: 4,389.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.36 : 7,133.48 = 3,180.64 : x
  2. Step 2: Convert to fraction form
    5,168.36/7,133.48 = 3,180.64/x
  3. Step 3: Cross multiply
    5,168.36x = 7,133.48 × 3,180.64
  4. Step 4: Simplify right side
    5,168.36x = 22,689,031.83
  5. Step 5: Solve for x
    x = 22,689,031.83/5,168.36
  6. Step 6: Final answer
    x = 4,389.99

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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.