Home / 6,930.98-10,378.20-4,151.06

Finding the Fourth Proportional to 6,930.98, 10,378.20 and 4,151.06

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Solution

The fourth proportional to 6,930.98, 10,378.20 and 4,151.06 is: 6,215.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,930.98 : 10,378.20 = 4,151.06 : x
  2. Step 2: Convert to fraction form
    6,930.98/10,378.20 = 4,151.06/x
  3. Step 3: Cross multiply
    6,930.98x = 10,378.20 × 4,151.06
  4. Step 4: Simplify right side
    6,930.98x = 43,080,530.89
  5. Step 5: Solve for x
    x = 43,080,530.89/6,930.98
  6. Step 6: Final answer
    x = 6,215.65

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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.