Home / 3,486.36-4,812.09-2,159.31

Finding the Fourth Proportional to 3,486.36, 4,812.09 and 2,159.31

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Solution

The fourth proportional to 3,486.36, 4,812.09 and 2,159.31 is: 2,980.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.36 : 4,812.09 = 2,159.31 : x
  2. Step 2: Convert to fraction form
    3,486.36/4,812.09 = 2,159.31/x
  3. Step 3: Cross multiply
    3,486.36x = 4,812.09 × 2,159.31
  4. Step 4: Simplify right side
    3,486.36x = 10,390,794.06
  5. Step 5: Solve for x
    x = 10,390,794.06/3,486.36
  6. Step 6: Final answer
    x = 2,980.41

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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.