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Finding the Fourth Proportional to 1,656.26, 2,285.39 and 957.50

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Solution

The fourth proportional to 1,656.26, 2,285.39 and 957.50 is: 1,321.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656.26 : 2,285.39 = 957.50 : x
  2. Step 2: Convert to fraction form
    1,656.26/2,285.39 = 957.50/x
  3. Step 3: Cross multiply
    1,656.26x = 2,285.39 × 957.50
  4. Step 4: Simplify right side
    1,656.26x = 2,188,256.14
  5. Step 5: Solve for x
    x = 2,188,256.14/1,656.26
  6. Step 6: Final answer
    x = 1,321.20

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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.