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Finding the Fourth Proportional to 953.00, 1,427.92 and 917.01

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Solution

The fourth proportional to 953.00, 1,427.92 and 917.01 is: 1,373.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.00 : 1,427.92 = 917.01 : x
  2. Step 2: Convert to fraction form
    953.00/1,427.92 = 917.01/x
  3. Step 3: Cross multiply
    953.00x = 1,427.92 × 917.01
  4. Step 4: Simplify right side
    953.00x = 1,309,414.63
  5. Step 5: Solve for x
    x = 1,309,414.63/953.00
  6. Step 6: Final answer
    x = 1,373.99

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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.