Home / 3,118.34-4,302.78-1,792.10

Finding the Fourth Proportional to 3,118.34, 4,302.78 and 1,792.10

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Solution

The fourth proportional to 3,118.34, 4,302.78 and 1,792.10 is: 2,472.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.34 : 4,302.78 = 1,792.10 : x
  2. Step 2: Convert to fraction form
    3,118.34/4,302.78 = 1,792.10/x
  3. Step 3: Cross multiply
    3,118.34x = 4,302.78 × 1,792.10
  4. Step 4: Simplify right side
    3,118.34x = 7,711,012.04
  5. Step 5: Solve for x
    x = 7,711,012.04/3,118.34
  6. Step 6: Final answer
    x = 2,472.79

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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.