Home / 1,845.80-2,765.61-1,325.01

Finding the Fourth Proportional to 1,845.80, 2,765.61 and 1,325.01

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Solution

The fourth proportional to 1,845.80, 2,765.61 and 1,325.01 is: 1,985.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.80 : 2,765.61 = 1,325.01 : x
  2. Step 2: Convert to fraction form
    1,845.80/2,765.61 = 1,325.01/x
  3. Step 3: Cross multiply
    1,845.80x = 2,765.61 × 1,325.01
  4. Step 4: Simplify right side
    1,845.80x = 3,664,476.25
  5. Step 5: Solve for x
    x = 3,664,476.25/1,845.80
  6. Step 6: Final answer
    x = 1,985.31

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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.