Home / 7,272.36-10,035.84-4,128.55

Finding the Fourth Proportional to 7,272.36, 10,035.84 and 4,128.55

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Solution

The fourth proportional to 7,272.36, 10,035.84 and 4,128.55 is: 5,697.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.36 : 10,035.84 = 4,128.55 : x
  2. Step 2: Convert to fraction form
    7,272.36/10,035.84 = 4,128.55/x
  3. Step 3: Cross multiply
    7,272.36x = 10,035.84 × 4,128.55
  4. Step 4: Simplify right side
    7,272.36x = 41,433,467.23
  5. Step 5: Solve for x
    x = 41,433,467.23/7,272.36
  6. Step 6: Final answer
    x = 5,697.39

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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.