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Finding the Fourth Proportional to 2,113.53, 2,916.68 and 1,182.03

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Solution

The fourth proportional to 2,113.53, 2,916.68 and 1,182.03 is: 1,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.53 : 2,916.68 = 1,182.03 : x
  2. Step 2: Convert to fraction form
    2,113.53/2,916.68 = 1,182.03/x
  3. Step 3: Cross multiply
    2,113.53x = 2,916.68 × 1,182.03
  4. Step 4: Simplify right side
    2,113.53x = 3,447,597.35
  5. Step 5: Solve for x
    x = 3,447,597.35/2,113.53
  6. Step 6: Final answer
    x = 1,631.20

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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.