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Finding the Fourth Proportional to 1,860.81, 2,789.03 and 1,840.25

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Solution

The fourth proportional to 1,860.81, 2,789.03 and 1,840.25 is: 2,758.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.81 : 2,789.03 = 1,840.25 : x
  2. Step 2: Convert to fraction form
    1,860.81/2,789.03 = 1,840.25/x
  3. Step 3: Cross multiply
    1,860.81x = 2,789.03 × 1,840.25
  4. Step 4: Simplify right side
    1,860.81x = 5,132,524.03
  5. Step 5: Solve for x
    x = 5,132,524.03/1,860.81
  6. Step 6: Final answer
    x = 2,758.23

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1.5x scale

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.