Home / 2,930.36-4,395.03-1,286.46

Finding the Fourth Proportional to 2,930.36, 4,395.03 and 1,286.46

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Solution

The fourth proportional to 2,930.36, 4,395.03 and 1,286.46 is: 1,929.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.36 : 4,395.03 = 1,286.46 : x
  2. Step 2: Convert to fraction form
    2,930.36/4,395.03 = 1,286.46/x
  3. Step 3: Cross multiply
    2,930.36x = 4,395.03 × 1,286.46
  4. Step 4: Simplify right side
    2,930.36x = 5,654,030.29
  5. Step 5: Solve for x
    x = 5,654,030.29/2,930.36
  6. Step 6: Final answer
    x = 1,929.47

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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.