Home / 2,274.18-3,137.35-1,389.45

Finding the Fourth Proportional to 2,274.18, 3,137.35 and 1,389.45

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Solution

The fourth proportional to 2,274.18, 3,137.35 and 1,389.45 is: 1,916.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,274.18 : 3,137.35 = 1,389.45 : x
  2. Step 2: Convert to fraction form
    2,274.18/3,137.35 = 1,389.45/x
  3. Step 3: Cross multiply
    2,274.18x = 3,137.35 × 1,389.45
  4. Step 4: Simplify right side
    2,274.18x = 4,359,201.85
  5. Step 5: Solve for x
    x = 4,359,201.85/2,274.18
  6. Step 6: Final answer
    x = 1,916.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.