Home / 1,969.10-2,718.33-1,342.88

Finding the Fourth Proportional to 1,969.10, 2,718.33 and 1,342.88

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Solution

The fourth proportional to 1,969.10, 2,718.33 and 1,342.88 is: 1,853.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969.10 : 2,718.33 = 1,342.88 : x
  2. Step 2: Convert to fraction form
    1,969.10/2,718.33 = 1,342.88/x
  3. Step 3: Cross multiply
    1,969.10x = 2,718.33 × 1,342.88
  4. Step 4: Simplify right side
    1,969.10x = 3,650,390.99
  5. Step 5: Solve for x
    x = 3,650,390.99/1,969.10
  6. Step 6: Final answer
    x = 1,853.84

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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.