Home / 5,369.28-7,408.89-3,130.98

Finding the Fourth Proportional to 5,369.28, 7,408.89 and 3,130.98

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Solution

The fourth proportional to 5,369.28, 7,408.89 and 3,130.98 is: 4,320.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,369.28 : 7,408.89 = 3,130.98 : x
  2. Step 2: Convert to fraction form
    5,369.28/7,408.89 = 3,130.98/x
  3. Step 3: Cross multiply
    5,369.28x = 7,408.89 × 3,130.98
  4. Step 4: Simplify right side
    5,369.28x = 23,197,086.41
  5. Step 5: Solve for x
    x = 23,197,086.41/5,369.28
  6. Step 6: Final answer
    x = 4,320.33

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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.