Home / 1,767.41-2,439.08-1,021.30

Finding the Fourth Proportional to 1,767.41, 2,439.08 and 1,021.30

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Solution

The fourth proportional to 1,767.41, 2,439.08 and 1,021.30 is: 1,409.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.41 : 2,439.08 = 1,021.30 : x
  2. Step 2: Convert to fraction form
    1,767.41/2,439.08 = 1,021.30/x
  3. Step 3: Cross multiply
    1,767.41x = 2,439.08 × 1,021.30
  4. Step 4: Simplify right side
    1,767.41x = 2,491,032.40
  5. Step 5: Solve for x
    x = 2,491,032.40/1,767.41
  6. Step 6: Final answer
    x = 1,409.43

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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.