Home / 4,213.36-6,320.28-1,291.69

Finding the Fourth Proportional to 4,213.36, 6,320.28 and 1,291.69

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Solution

The fourth proportional to 4,213.36, 6,320.28 and 1,291.69 is: 1,937.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.36 : 6,320.28 = 1,291.69 : x
  2. Step 2: Convert to fraction form
    4,213.36/6,320.28 = 1,291.69/x
  3. Step 3: Cross multiply
    4,213.36x = 6,320.28 × 1,291.69
  4. Step 4: Simplify right side
    4,213.36x = 8,163,842.47
  5. Step 5: Solve for x
    x = 8,163,842.47/4,213.36
  6. Step 6: Final answer
    x = 1,937.61

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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.