Home / 3,515.18-5,271.57-1,293.48

Finding the Fourth Proportional to 3,515.18, 5,271.57 and 1,293.48

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Solution

The fourth proportional to 3,515.18, 5,271.57 and 1,293.48 is: 1,939.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.18 : 5,271.57 = 1,293.48 : x
  2. Step 2: Convert to fraction form
    3,515.18/5,271.57 = 1,293.48/x
  3. Step 3: Cross multiply
    3,515.18x = 5,271.57 × 1,293.48
  4. Step 4: Simplify right side
    3,515.18x = 6,818,670.36
  5. Step 5: Solve for x
    x = 6,818,670.36/3,515.18
  6. Step 6: Final answer
    x = 1,939.78

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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.