Home / 5,403.83-8,109.39-2,116.51

Finding the Fourth Proportional to 5,403.83, 8,109.39 and 2,116.51

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Solution

The fourth proportional to 5,403.83, 8,109.39 and 2,116.51 is: 3,176.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.83 : 8,109.39 = 2,116.51 : x
  2. Step 2: Convert to fraction form
    5,403.83/8,109.39 = 2,116.51/x
  3. Step 3: Cross multiply
    5,403.83x = 8,109.39 × 2,116.51
  4. Step 4: Simplify right side
    5,403.83x = 17,163,605.03
  5. Step 5: Solve for x
    x = 17,163,605.03/5,403.83
  6. Step 6: Final answer
    x = 3,176.19

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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.