Home / 3,186.16-4,397.34-1,789

Finding the Fourth Proportional to 3,186.16, 4,397.34 and 1,789

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Solution

The fourth proportional to 3,186.16, 4,397.34 and 1,789 is: 2,469.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.16 : 4,397.34 = 1,789 : x
  2. Step 2: Convert to fraction form
    3,186.16/4,397.34 = 1,789/x
  3. Step 3: Cross multiply
    3,186.16x = 4,397.34 × 1,789
  4. Step 4: Simplify right side
    3,186.16x = 7,866,841.26
  5. Step 5: Solve for x
    x = 7,866,841.26/3,186.16
  6. Step 6: Final answer
    x = 2,469.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.