Home / 2,157.75-2,974.05-1,783.53

Finding the Fourth Proportional to 2,157.75, 2,974.05 and 1,783.53

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Solution

The fourth proportional to 2,157.75, 2,974.05 and 1,783.53 is: 2,458.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.75 : 2,974.05 = 1,783.53 : x
  2. Step 2: Convert to fraction form
    2,157.75/2,974.05 = 1,783.53/x
  3. Step 3: Cross multiply
    2,157.75x = 2,974.05 × 1,783.53
  4. Step 4: Simplify right side
    2,157.75x = 5,304,307.40
  5. Step 5: Solve for x
    x = 5,304,307.40/2,157.75
  6. Step 6: Final answer
    x = 2,458.26

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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.