Home / 2,291.51-3,437.43-1,122.49

Finding the Fourth Proportional to 2,291.51, 3,437.43 and 1,122.49

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Solution

The fourth proportional to 2,291.51, 3,437.43 and 1,122.49 is: 1,683.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.51 : 3,437.43 = 1,122.49 : x
  2. Step 2: Convert to fraction form
    2,291.51/3,437.43 = 1,122.49/x
  3. Step 3: Cross multiply
    2,291.51x = 3,437.43 × 1,122.49
  4. Step 4: Simplify right side
    2,291.51x = 3,858,468.00
  5. Step 5: Solve for x
    x = 3,858,468.00/2,291.51
  6. Step 6: Final answer
    x = 1,683.81

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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.