Home / 2,333.28-3,219.96-1,285.32

Finding the Fourth Proportional to 2,333.28, 3,219.96 and 1,285.32

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Solution

The fourth proportional to 2,333.28, 3,219.96 and 1,285.32 is: 1,773.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,333.28 : 3,219.96 = 1,285.32 : x
  2. Step 2: Convert to fraction form
    2,333.28/3,219.96 = 1,285.32/x
  3. Step 3: Cross multiply
    2,333.28x = 3,219.96 × 1,285.32
  4. Step 4: Simplify right side
    2,333.28x = 4,138,678.99
  5. Step 5: Solve for x
    x = 4,138,678.99/2,333.28
  6. Step 6: Final answer
    x = 1,773.76

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1.5x scale

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.