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Finding the Fourth Proportional to 1,551.65, 2,141.24 and 954.41

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Solution

The fourth proportional to 1,551.65, 2,141.24 and 954.41 is: 1,317.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.65 : 2,141.24 = 954.41 : x
  2. Step 2: Convert to fraction form
    1,551.65/2,141.24 = 954.41/x
  3. Step 3: Cross multiply
    1,551.65x = 2,141.24 × 954.41
  4. Step 4: Simplify right side
    1,551.65x = 2,043,605.39
  5. Step 5: Solve for x
    x = 2,043,605.39/1,551.65
  6. Step 6: Final answer
    x = 1,317.06

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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.