Home / 7,131.40-10,682.70-4,049.80

Finding the Fourth Proportional to 7,131.40, 10,682.70 and 4,049.80

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Solution

The fourth proportional to 7,131.40, 10,682.70 and 4,049.80 is: 6,066.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.40 : 10,682.70 = 4,049.80 : x
  2. Step 2: Convert to fraction form
    7,131.40/10,682.70 = 4,049.80/x
  3. Step 3: Cross multiply
    7,131.40x = 10,682.70 × 4,049.80
  4. Step 4: Simplify right side
    7,131.40x = 43,262,798.46
  5. Step 5: Solve for x
    x = 43,262,798.46/7,131.40
  6. Step 6: Final answer
    x = 6,066.52

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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.