Home / 2,985.31-4,119.24-1,726.39

Finding the Fourth Proportional to 2,985.31, 4,119.24 and 1,726.39

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Solution

The fourth proportional to 2,985.31, 4,119.24 and 1,726.39 is: 2,382.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.31 : 4,119.24 = 1,726.39 : x
  2. Step 2: Convert to fraction form
    2,985.31/4,119.24 = 1,726.39/x
  3. Step 3: Cross multiply
    2,985.31x = 4,119.24 × 1,726.39
  4. Step 4: Simplify right side
    2,985.31x = 7,111,414.74
  5. Step 5: Solve for x
    x = 7,111,414.74/2,985.31
  6. Step 6: Final answer
    x = 2,382.14

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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.