Home / 7,946.82-11,920.30-2,400.21

Finding the Fourth Proportional to 7,946.82, 11,920.30 and 2,400.21

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Solution

The fourth proportional to 7,946.82, 11,920.30 and 2,400.21 is: 3,600.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,946.82 : 11,920.30 = 2,400.21 : x
  2. Step 2: Convert to fraction form
    7,946.82/11,920.30 = 2,400.21/x
  3. Step 3: Cross multiply
    7,946.82x = 11,920.30 × 2,400.21
  4. Step 4: Simplify right side
    7,946.82x = 28,611,223.26
  5. Step 5: Solve for x
    x = 28,611,223.26/7,946.82
  6. Step 6: Final answer
    x = 3,600.34

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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.