Home / 2,688.42-4,034.09-1,045.03

Finding the Fourth Proportional to 2,688.42, 4,034.09 and 1,045.03

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Solution

The fourth proportional to 2,688.42, 4,034.09 and 1,045.03 is: 1,568.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.42 : 4,034.09 = 1,045.03 : x
  2. Step 2: Convert to fraction form
    2,688.42/4,034.09 = 1,045.03/x
  3. Step 3: Cross multiply
    2,688.42x = 4,034.09 × 1,045.03
  4. Step 4: Simplify right side
    2,688.42x = 4,215,745.07
  5. Step 5: Solve for x
    x = 4,215,745.07/2,688.42
  6. Step 6: Final answer
    x = 1,568.11

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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.