Home / 5,612.86-8,408.52-3,140.19

Finding the Fourth Proportional to 5,612.86, 8,408.52 and 3,140.19

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Solution

The fourth proportional to 5,612.86, 8,408.52 and 3,140.19 is: 4,704.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.86 : 8,408.52 = 3,140.19 : x
  2. Step 2: Convert to fraction form
    5,612.86/8,408.52 = 3,140.19/x
  3. Step 3: Cross multiply
    5,612.86x = 8,408.52 × 3,140.19
  4. Step 4: Simplify right side
    5,612.86x = 26,404,350.42
  5. Step 5: Solve for x
    x = 26,404,350.42/5,612.86
  6. Step 6: Final answer
    x = 4,704.26

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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.