Home / 1,934.10-2,905.26-1,642.20

Finding the Fourth Proportional to 1,934.10, 2,905.26 and 1,642.20

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Solution

The fourth proportional to 1,934.10, 2,905.26 and 1,642.20 is: 2,466.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.10 : 2,905.26 = 1,642.20 : x
  2. Step 2: Convert to fraction form
    1,934.10/2,905.26 = 1,642.20/x
  3. Step 3: Cross multiply
    1,934.10x = 2,905.26 × 1,642.20
  4. Step 4: Simplify right side
    1,934.10x = 4,771,017.97
  5. Step 5: Solve for x
    x = 4,771,017.97/1,934.10
  6. Step 6: Final answer
    x = 2,466.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.