Home / 5,412.07-7,468.77-2,989.43

Finding the Fourth Proportional to 5,412.07, 7,468.77 and 2,989.43

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Solution

The fourth proportional to 5,412.07, 7,468.77 and 2,989.43 is: 4,125.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.07 : 7,468.77 = 2,989.43 : x
  2. Step 2: Convert to fraction form
    5,412.07/7,468.77 = 2,989.43/x
  3. Step 3: Cross multiply
    5,412.07x = 7,468.77 × 2,989.43
  4. Step 4: Simplify right side
    5,412.07x = 22,327,365.10
  5. Step 5: Solve for x
    x = 22,327,365.10/5,412.07
  6. Step 6: Final answer
    x = 4,125.48

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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.