Home / 5,403.72-8,105.90-1,508.12

Finding the Fourth Proportional to 5,403.72, 8,105.90 and 1,508.12

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Solution

The fourth proportional to 5,403.72, 8,105.90 and 1,508.12 is: 2,262.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.72 : 8,105.90 = 1,508.12 : x
  2. Step 2: Convert to fraction form
    5,403.72/8,105.90 = 1,508.12/x
  3. Step 3: Cross multiply
    5,403.72x = 8,105.90 × 1,508.12
  4. Step 4: Simplify right side
    5,403.72x = 12,224,621.84
  5. Step 5: Solve for x
    x = 12,224,621.84/5,403.72
  6. Step 6: Final answer
    x = 2,262.26

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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.