Home / 5,456.66-8,186.58-1,758.81

Finding the Fourth Proportional to 5,456.66, 8,186.58 and 1,758.81

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Solution

The fourth proportional to 5,456.66, 8,186.58 and 1,758.81 is: 2,638.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.66 : 8,186.58 = 1,758.81 : x
  2. Step 2: Convert to fraction form
    5,456.66/8,186.58 = 1,758.81/x
  3. Step 3: Cross multiply
    5,456.66x = 8,186.58 × 1,758.81
  4. Step 4: Simplify right side
    5,456.66x = 14,398,638.77
  5. Step 5: Solve for x
    x = 14,398,638.77/5,456.66
  6. Step 6: Final answer
    x = 2,638.73

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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.