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Finding the Fourth Proportional to 6,803.45, 9,389.72 and 3,819.51

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Solution

The fourth proportional to 6,803.45, 9,389.72 and 3,819.51 is: 5,271.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,803.45 : 9,389.72 = 3,819.51 : x
  2. Step 2: Convert to fraction form
    6,803.45/9,389.72 = 3,819.51/x
  3. Step 3: Cross multiply
    6,803.45x = 9,389.72 × 3,819.51
  4. Step 4: Simplify right side
    6,803.45x = 35,864,129.44
  5. Step 5: Solve for x
    x = 35,864,129.44/6,803.45
  6. Step 6: Final answer
    x = 5,271.46

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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.