Home / 5,608.15-8,408.58-2,688.10

Finding the Fourth Proportional to 5,608.15, 8,408.58 and 2,688.10

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Solution

The fourth proportional to 5,608.15, 8,408.58 and 2,688.10 is: 4,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,608.15 : 8,408.58 = 2,688.10 : x
  2. Step 2: Convert to fraction form
    5,608.15/8,408.58 = 2,688.10/x
  3. Step 3: Cross multiply
    5,608.15x = 8,408.58 × 2,688.10
  4. Step 4: Simplify right side
    5,608.15x = 22,603,103.90
  5. Step 5: Solve for x
    x = 22,603,103.90/5,608.15
  6. Step 6: Final answer
    x = 4,030.40

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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.