Home / 5,408.28-7,459.84-3,729.74

Finding the Fourth Proportional to 5,408.28, 7,459.84 and 3,729.74

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Solution

The fourth proportional to 5,408.28, 7,459.84 and 3,729.74 is: 5,144.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.28 : 7,459.84 = 3,729.74 : x
  2. Step 2: Convert to fraction form
    5,408.28/7,459.84 = 3,729.74/x
  3. Step 3: Cross multiply
    5,408.28x = 7,459.84 × 3,729.74
  4. Step 4: Simplify right side
    5,408.28x = 27,823,263.64
  5. Step 5: Solve for x
    x = 27,823,263.64/5,408.28
  6. Step 6: Final answer
    x = 5,144.57

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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.