Home / 5,403.08-8,108.26-2,115.76

Finding the Fourth Proportional to 5,403.08, 8,108.26 and 2,115.76

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Solution

The fourth proportional to 5,403.08, 8,108.26 and 2,115.76 is: 3,175.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.08 : 8,108.26 = 2,115.76 : x
  2. Step 2: Convert to fraction form
    5,403.08/8,108.26 = 2,115.76/x
  3. Step 3: Cross multiply
    5,403.08x = 8,108.26 × 2,115.76
  4. Step 4: Simplify right side
    5,403.08x = 17,155,111.91
  5. Step 5: Solve for x
    x = 17,155,111.91/5,403.08
  6. Step 6: Final answer
    x = 3,175.06

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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.