Home / 2,985.29-4,119.71-1,641

Finding the Fourth Proportional to 2,985.29, 4,119.71 and 1,641

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Solution

The fourth proportional to 2,985.29, 4,119.71 and 1,641 is: 2,264.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.29 : 4,119.71 = 1,641 : x
  2. Step 2: Convert to fraction form
    2,985.29/4,119.71 = 1,641/x
  3. Step 3: Cross multiply
    2,985.29x = 4,119.71 × 1,641
  4. Step 4: Simplify right side
    2,985.29x = 6,760,435.91
  5. Step 5: Solve for x
    x = 6,760,435.91/2,985.29
  6. Step 6: Final answer
    x = 2,264.59

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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.