Home / 5,403.18-8,101.52-2,112.35

Finding the Fourth Proportional to 5,403.18, 8,101.52 and 2,112.35

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Solution

The fourth proportional to 5,403.18, 8,101.52 and 2,112.35 is: 3,167.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.18 : 8,101.52 = 2,112.35 : x
  2. Step 2: Convert to fraction form
    5,403.18/8,101.52 = 2,112.35/x
  3. Step 3: Cross multiply
    5,403.18x = 8,101.52 × 2,112.35
  4. Step 4: Simplify right side
    5,403.18x = 17,113,245.77
  5. Step 5: Solve for x
    x = 17,113,245.77/5,403.18
  6. Step 6: Final answer
    x = 3,167.25

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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.