Home / 2,680.36-4,020.14-1,036.68

Finding the Fourth Proportional to 2,680.36, 4,020.14 and 1,036.68

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Solution

The fourth proportional to 2,680.36, 4,020.14 and 1,036.68 is: 1,554.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.36 : 4,020.14 = 1,036.68 : x
  2. Step 2: Convert to fraction form
    2,680.36/4,020.14 = 1,036.68/x
  3. Step 3: Cross multiply
    2,680.36x = 4,020.14 × 1,036.68
  4. Step 4: Simplify right side
    2,680.36x = 4,167,598.74
  5. Step 5: Solve for x
    x = 4,167,598.74/2,680.36
  6. Step 6: Final answer
    x = 1,554.87

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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.