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Finding the Fourth Proportional to 1,303.56, 1,954.68 and 933.12

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Solution

The fourth proportional to 1,303.56, 1,954.68 and 933.12 is: 1,399.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303.56 : 1,954.68 = 933.12 : x
  2. Step 2: Convert to fraction form
    1,303.56/1,954.68 = 933.12/x
  3. Step 3: Cross multiply
    1,303.56x = 1,954.68 × 933.12
  4. Step 4: Simplify right side
    1,303.56x = 1,823,951.00
  5. Step 5: Solve for x
    x = 1,823,951.00/1,303.56
  6. Step 6: Final answer
    x = 1,399.21

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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.