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Finding the Fourth Proportional to 5,343.51, 8,016.18 and 1,645.65

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Solution

The fourth proportional to 5,343.51, 8,016.18 and 1,645.65 is: 2,468.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343.51 : 8,016.18 = 1,645.65 : x
  2. Step 2: Convert to fraction form
    5,343.51/8,016.18 = 1,645.65/x
  3. Step 3: Cross multiply
    5,343.51x = 8,016.18 × 1,645.65
  4. Step 4: Simplify right side
    5,343.51x = 13,191,826.62
  5. Step 5: Solve for x
    x = 13,191,826.62/5,343.51
  6. Step 6: Final answer
    x = 2,468.76

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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.