Home / 1,954.08-2,920.56-1,798.41

Finding the Fourth Proportional to 1,954.08, 2,920.56 and 1,798.41

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Solution

The fourth proportional to 1,954.08, 2,920.56 and 1,798.41 is: 2,687.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.08 : 2,920.56 = 1,798.41 : x
  2. Step 2: Convert to fraction form
    1,954.08/2,920.56 = 1,798.41/x
  3. Step 3: Cross multiply
    1,954.08x = 2,920.56 × 1,798.41
  4. Step 4: Simplify right side
    1,954.08x = 5,252,364.31
  5. Step 5: Solve for x
    x = 5,252,364.31/1,954.08
  6. Step 6: Final answer
    x = 2,687.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.