Home / 1,485.28-2,228.64-935.92

Finding the Fourth Proportional to 1,485.28, 2,228.64 and 935.92

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Solution

The fourth proportional to 1,485.28, 2,228.64 and 935.92 is: 1,404.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.28 : 2,228.64 = 935.92 : x
  2. Step 2: Convert to fraction form
    1,485.28/2,228.64 = 935.92/x
  3. Step 3: Cross multiply
    1,485.28x = 2,228.64 × 935.92
  4. Step 4: Simplify right side
    1,485.28x = 2,085,828.75
  5. Step 5: Solve for x
    x = 2,085,828.75/1,485.28
  6. Step 6: Final answer
    x = 1,404.33

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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.