Home / 3,188.13-4,780.34-1,455.81

Finding the Fourth Proportional to 3,188.13, 4,780.34 and 1,455.81

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Solution

The fourth proportional to 3,188.13, 4,780.34 and 1,455.81 is: 2,182.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.13 : 4,780.34 = 1,455.81 : x
  2. Step 2: Convert to fraction form
    3,188.13/4,780.34 = 1,455.81/x
  3. Step 3: Cross multiply
    3,188.13x = 4,780.34 × 1,455.81
  4. Step 4: Simplify right side
    3,188.13x = 6,959,259.50
  5. Step 5: Solve for x
    x = 6,959,259.50/3,188.13
  6. Step 6: Final answer
    x = 2,182.87

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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.