Home / 7,434.84-11,147.94-3,970.20

Finding the Fourth Proportional to 7,434.84, 11,147.94 and 3,970.20

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Solution

The fourth proportional to 7,434.84, 11,147.94 and 3,970.20 is: 5,952.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,434.84 : 11,147.94 = 3,970.20 : x
  2. Step 2: Convert to fraction form
    7,434.84/11,147.94 = 3,970.20/x
  3. Step 3: Cross multiply
    7,434.84x = 11,147.94 × 3,970.20
  4. Step 4: Simplify right side
    7,434.84x = 44,259,551.39
  5. Step 5: Solve for x
    x = 44,259,551.39/7,434.84
  6. Step 6: Final answer
    x = 5,952.99

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1.5x scale

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.