Home / 1,774.64-2,447.42-1,111.57

Finding the Fourth Proportional to 1,774.64, 2,447.42 and 1,111.57

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Solution

The fourth proportional to 1,774.64, 2,447.42 and 1,111.57 is: 1,532.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774.64 : 2,447.42 = 1,111.57 : x
  2. Step 2: Convert to fraction form
    1,774.64/2,447.42 = 1,111.57/x
  3. Step 3: Cross multiply
    1,774.64x = 2,447.42 × 1,111.57
  4. Step 4: Simplify right side
    1,774.64x = 2,720,466.97
  5. Step 5: Solve for x
    x = 2,720,466.97/1,774.64
  6. Step 6: Final answer
    x = 1,532.97

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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.