Home / 5,297.95-7,311.33-2,940.31

Finding the Fourth Proportional to 5,297.95, 7,311.33 and 2,940.31

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Solution

The fourth proportional to 5,297.95, 7,311.33 and 2,940.31 is: 4,057.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,297.95 : 7,311.33 = 2,940.31 : x
  2. Step 2: Convert to fraction form
    5,297.95/7,311.33 = 2,940.31/x
  3. Step 3: Cross multiply
    5,297.95x = 7,311.33 × 2,940.31
  4. Step 4: Simplify right side
    5,297.95x = 21,497,576.71
  5. Step 5: Solve for x
    x = 21,497,576.71/5,297.95
  6. Step 6: Final answer
    x = 4,057.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.