Home / 7,820.91-10,798.38-4,837.68

Finding the Fourth Proportional to 7,820.91, 10,798.38 and 4,837.68

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Solution

The fourth proportional to 7,820.91, 10,798.38 and 4,837.68 is: 6,679.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.91 : 10,798.38 = 4,837.68 : x
  2. Step 2: Convert to fraction form
    7,820.91/10,798.38 = 4,837.68/x
  3. Step 3: Cross multiply
    7,820.91x = 10,798.38 × 4,837.68
  4. Step 4: Simplify right side
    7,820.91x = 52,239,106.96
  5. Step 5: Solve for x
    x = 52,239,106.96/7,820.91
  6. Step 6: Final answer
    x = 6,679.42

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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.