Home / 1,845.56-2,768.46-547.40

Finding the Fourth Proportional to 1,845.56, 2,768.46 and 547.40

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Solution

The fourth proportional to 1,845.56, 2,768.46 and 547.40 is: 821.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.56 : 2,768.46 = 547.40 : x
  2. Step 2: Convert to fraction form
    1,845.56/2,768.46 = 547.40/x
  3. Step 3: Cross multiply
    1,845.56x = 2,768.46 × 547.40
  4. Step 4: Simplify right side
    1,845.56x = 1,515,455.00
  5. Step 5: Solve for x
    x = 1,515,455.00/1,845.56
  6. Step 6: Final answer
    x = 821.14

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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.