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Finding the Fourth Proportional to 1,880.85, 2,816.83 and 954.10

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Solution

The fourth proportional to 1,880.85, 2,816.83 and 954.10 is: 1,428.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.85 : 2,816.83 = 954.10 : x
  2. Step 2: Convert to fraction form
    1,880.85/2,816.83 = 954.10/x
  3. Step 3: Cross multiply
    1,880.85x = 2,816.83 × 954.10
  4. Step 4: Simplify right side
    1,880.85x = 2,687,544.77
  5. Step 5: Solve for x
    x = 2,687,544.77/1,880.85
  6. Step 6: Final answer
    x = 1,428.90

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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.