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Finding the Fourth Proportional to 1,522.56, 2,287.49 and 975.81

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Solution

The fourth proportional to 1,522.56, 2,287.49 and 975.81 is: 1,466.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,522.56 : 2,287.49 = 975.81 : x
  2. Step 2: Convert to fraction form
    1,522.56/2,287.49 = 975.81/x
  3. Step 3: Cross multiply
    1,522.56x = 2,287.49 × 975.81
  4. Step 4: Simplify right side
    1,522.56x = 2,232,153.18
  5. Step 5: Solve for x
    x = 2,232,153.18/1,522.56
  6. Step 6: Final answer
    x = 1,466.05

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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.