Home / 1,669.40-2,304.61-1,578.95

Finding the Fourth Proportional to 1,669.40, 2,304.61 and 1,578.95

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Solution

The fourth proportional to 1,669.40, 2,304.61 and 1,578.95 is: 2,179.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.40 : 2,304.61 = 1,578.95 : x
  2. Step 2: Convert to fraction form
    1,669.40/2,304.61 = 1,578.95/x
  3. Step 3: Cross multiply
    1,669.40x = 2,304.61 × 1,578.95
  4. Step 4: Simplify right side
    1,669.40x = 3,638,848.49
  5. Step 5: Solve for x
    x = 3,638,848.49/1,669.40
  6. Step 6: Final answer
    x = 2,179.74

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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.