Home / 5,403.59-8,105.45-2,118.23

Finding the Fourth Proportional to 5,403.59, 8,105.45 and 2,118.23

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Solution

The fourth proportional to 5,403.59, 8,105.45 and 2,118.23 is: 3,177.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.59 : 8,105.45 = 2,118.23 : x
  2. Step 2: Convert to fraction form
    5,403.59/8,105.45 = 2,118.23/x
  3. Step 3: Cross multiply
    5,403.59x = 8,105.45 × 2,118.23
  4. Step 4: Simplify right side
    5,403.59x = 17,169,156.24
  5. Step 5: Solve for x
    x = 17,169,156.24/5,403.59
  6. Step 6: Final answer
    x = 3,177.36

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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.