Home / 3,128.04-4,691.25-936.99

Finding the Fourth Proportional to 3,128.04, 4,691.25 and 936.99

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Solution

The fourth proportional to 3,128.04, 4,691.25 and 936.99 is: 1,405.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.04 : 4,691.25 = 936.99 : x
  2. Step 2: Convert to fraction form
    3,128.04/4,691.25 = 936.99/x
  3. Step 3: Cross multiply
    3,128.04x = 4,691.25 × 936.99
  4. Step 4: Simplify right side
    3,128.04x = 4,395,654.34
  5. Step 5: Solve for x
    x = 4,395,654.34/3,128.04
  6. Step 6: Final answer
    x = 1,405.24

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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.