Home / 2,190.24-3,285.63-957.56

Finding the Fourth Proportional to 2,190.24, 3,285.63 and 957.56

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Solution

The fourth proportional to 2,190.24, 3,285.63 and 957.56 is: 1,436.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.24 : 3,285.63 = 957.56 : x
  2. Step 2: Convert to fraction form
    2,190.24/3,285.63 = 957.56/x
  3. Step 3: Cross multiply
    2,190.24x = 3,285.63 × 957.56
  4. Step 4: Simplify right side
    2,190.24x = 3,146,171.43
  5. Step 5: Solve for x
    x = 3,146,171.43/2,190.24
  6. Step 6: Final answer
    x = 1,436.45

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1.5x scale

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.