Home / 5,298.12-7,311.33-2,940.21

Finding the Fourth Proportional to 5,298.12, 7,311.33 and 2,940.21

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Solution

The fourth proportional to 5,298.12, 7,311.33 and 2,940.21 is: 4,057.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,298.12 : 7,311.33 = 2,940.21 : x
  2. Step 2: Convert to fraction form
    5,298.12/7,311.33 = 2,940.21/x
  3. Step 3: Cross multiply
    5,298.12x = 7,311.33 × 2,940.21
  4. Step 4: Simplify right side
    5,298.12x = 21,496,845.58
  5. Step 5: Solve for x
    x = 21,496,845.58/5,298.12
  6. Step 6: Final answer
    x = 4,057.45

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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.