Home / 2,167.33-2,989.43-1,381.03

Finding the Fourth Proportional to 2,167.33, 2,989.43 and 1,381.03

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Solution

The fourth proportional to 2,167.33, 2,989.43 and 1,381.03 is: 1,904.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.33 : 2,989.43 = 1,381.03 : x
  2. Step 2: Convert to fraction form
    2,167.33/2,989.43 = 1,381.03/x
  3. Step 3: Cross multiply
    2,167.33x = 2,989.43 × 1,381.03
  4. Step 4: Simplify right side
    2,167.33x = 4,128,492.51
  5. Step 5: Solve for x
    x = 4,128,492.51/2,167.33
  6. Step 6: Final answer
    x = 1,904.87

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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.