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Finding the Fourth Proportional to 6,835.59, 10,215.92 and 4,990.59

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Solution

The fourth proportional to 6,835.59, 10,215.92 and 4,990.59 is: 7,458.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,835.59 : 10,215.92 = 4,990.59 : x
  2. Step 2: Convert to fraction form
    6,835.59/10,215.92 = 4,990.59/x
  3. Step 3: Cross multiply
    6,835.59x = 10,215.92 × 4,990.59
  4. Step 4: Simplify right side
    6,835.59x = 50,983,443.24
  5. Step 5: Solve for x
    x = 50,983,443.24/6,835.59
  6. Step 6: Final answer
    x = 7,458.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.