Home / 2,681.01-4,021.38-1,120.68

Finding the Fourth Proportional to 2,681.01, 4,021.38 and 1,120.68

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Solution

The fourth proportional to 2,681.01, 4,021.38 and 1,120.68 is: 1,680.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.01 : 4,021.38 = 1,120.68 : x
  2. Step 2: Convert to fraction form
    2,681.01/4,021.38 = 1,120.68/x
  3. Step 3: Cross multiply
    2,681.01x = 4,021.38 × 1,120.68
  4. Step 4: Simplify right side
    2,681.01x = 4,506,680.14
  5. Step 5: Solve for x
    x = 4,506,680.14/2,681.01
  6. Step 6: Final answer
    x = 1,680.96

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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.