Home / 1,368.10-2,052.35-627.56

Finding the Fourth Proportional to 1,368.10, 2,052.35 and 627.56

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Solution

The fourth proportional to 1,368.10, 2,052.35 and 627.56 is: 941.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368.10 : 2,052.35 = 627.56 : x
  2. Step 2: Convert to fraction form
    1,368.10/2,052.35 = 627.56/x
  3. Step 3: Cross multiply
    1,368.10x = 2,052.35 × 627.56
  4. Step 4: Simplify right side
    1,368.10x = 1,287,974.33
  5. Step 5: Solve for x
    x = 1,287,974.33/1,368.10
  6. Step 6: Final answer
    x = 941.44

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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.