Home / 7,828.26-11,736.24-3,880.89

Finding the Fourth Proportional to 7,828.26, 11,736.24 and 3,880.89

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Solution

The fourth proportional to 7,828.26, 11,736.24 and 3,880.89 is: 5,818.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.26 : 11,736.24 = 3,880.89 : x
  2. Step 2: Convert to fraction form
    7,828.26/11,736.24 = 3,880.89/x
  3. Step 3: Cross multiply
    7,828.26x = 11,736.24 × 3,880.89
  4. Step 4: Simplify right side
    7,828.26x = 45,547,056.45
  5. Step 5: Solve for x
    x = 45,547,056.45/7,828.26
  6. Step 6: Final answer
    x = 5,818.29

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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.