Home / 5,406.01-7,449.22-3,987.45

Finding the Fourth Proportional to 5,406.01, 7,449.22 and 3,987.45

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Solution

The fourth proportional to 5,406.01, 7,449.22 and 3,987.45 is: 5,494.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.01 : 7,449.22 = 3,987.45 : x
  2. Step 2: Convert to fraction form
    5,406.01/7,449.22 = 3,987.45/x
  3. Step 3: Cross multiply
    5,406.01x = 7,449.22 × 3,987.45
  4. Step 4: Simplify right side
    5,406.01x = 29,703,408.49
  5. Step 5: Solve for x
    x = 29,703,408.49/5,406.01
  6. Step 6: Final answer
    x = 5,494.52

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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.