Home / 5,408.70-8,112.51-1,513.14

Finding the Fourth Proportional to 5,408.70, 8,112.51 and 1,513.14

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Solution

The fourth proportional to 5,408.70, 8,112.51 and 1,513.14 is: 2,269.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.70 : 8,112.51 = 1,513.14 : x
  2. Step 2: Convert to fraction form
    5,408.70/8,112.51 = 1,513.14/x
  3. Step 3: Cross multiply
    5,408.70x = 8,112.51 × 1,513.14
  4. Step 4: Simplify right side
    5,408.70x = 12,275,363.38
  5. Step 5: Solve for x
    x = 12,275,363.38/5,408.70
  6. Step 6: Final answer
    x = 2,269.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.