Home / 5,415.47-7,469.36-3,424.11

Finding the Fourth Proportional to 5,415.47, 7,469.36 and 3,424.11

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Solution

The fourth proportional to 5,415.47, 7,469.36 and 3,424.11 is: 4,722.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.47 : 7,469.36 = 3,424.11 : x
  2. Step 2: Convert to fraction form
    5,415.47/7,469.36 = 3,424.11/x
  3. Step 3: Cross multiply
    5,415.47x = 7,469.36 × 3,424.11
  4. Step 4: Simplify right side
    5,415.47x = 25,575,893.15
  5. Step 5: Solve for x
    x = 25,575,893.15/5,415.47
  6. Step 6: Final answer
    x = 4,722.74

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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.