Home / 7,946.19-11,920.59-2,680.70

Finding the Fourth Proportional to 7,946.19, 11,920.59 and 2,680.70

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Solution

The fourth proportional to 7,946.19, 11,920.59 and 2,680.70 is: 4,021.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,946.19 : 11,920.59 = 2,680.70 : x
  2. Step 2: Convert to fraction form
    7,946.19/11,920.59 = 2,680.70/x
  3. Step 3: Cross multiply
    7,946.19x = 11,920.59 × 2,680.70
  4. Step 4: Simplify right side
    7,946.19x = 31,955,466.01
  5. Step 5: Solve for x
    x = 31,955,466.01/7,946.19
  6. Step 6: Final answer
    x = 4,021.48

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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.