Home / 5,408.96-8,112.81-1,513.67

Finding the Fourth Proportional to 5,408.96, 8,112.81 and 1,513.67

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Solution

The fourth proportional to 5,408.96, 8,112.81 and 1,513.67 is: 2,270.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.96 : 8,112.81 = 1,513.67 : x
  2. Step 2: Convert to fraction form
    5,408.96/8,112.81 = 1,513.67/x
  3. Step 3: Cross multiply
    5,408.96x = 8,112.81 × 1,513.67
  4. Step 4: Simplify right side
    5,408.96x = 12,280,117.11
  5. Step 5: Solve for x
    x = 12,280,117.11/5,408.96
  6. Step 6: Final answer
    x = 2,270.33

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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.