Home / 5,100.36-7,031.73-3,328.89

Finding the Fourth Proportional to 5,100.36, 7,031.73 and 3,328.89

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Solution

The fourth proportional to 5,100.36, 7,031.73 and 3,328.89 is: 4,589.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,100.36 : 7,031.73 = 3,328.89 : x
  2. Step 2: Convert to fraction form
    5,100.36/7,031.73 = 3,328.89/x
  3. Step 3: Cross multiply
    5,100.36x = 7,031.73 × 3,328.89
  4. Step 4: Simplify right side
    5,100.36x = 23,407,855.68
  5. Step 5: Solve for x
    x = 23,407,855.68/5,100.36
  6. Step 6: Final answer
    x = 4,589.45

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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.