Home / 5,618.86-8,435.58-4,321.24

Finding the Fourth Proportional to 5,618.86, 8,435.58 and 4,321.24

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Solution

The fourth proportional to 5,618.86, 8,435.58 and 4,321.24 is: 6,487.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.86 : 8,435.58 = 4,321.24 : x
  2. Step 2: Convert to fraction form
    5,618.86/8,435.58 = 4,321.24/x
  3. Step 3: Cross multiply
    5,618.86x = 8,435.58 × 4,321.24
  4. Step 4: Simplify right side
    5,618.86x = 36,452,165.72
  5. Step 5: Solve for x
    x = 36,452,165.72/5,618.86
  6. Step 6: Final answer
    x = 6,487.47

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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.