Home / 4,939.70-6,816.65-2,814.67

Finding the Fourth Proportional to 4,939.70, 6,816.65 and 2,814.67

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Solution

The fourth proportional to 4,939.70, 6,816.65 and 2,814.67 is: 3,884.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.70 : 6,816.65 = 2,814.67 : x
  2. Step 2: Convert to fraction form
    4,939.70/6,816.65 = 2,814.67/x
  3. Step 3: Cross multiply
    4,939.70x = 6,816.65 × 2,814.67
  4. Step 4: Simplify right side
    4,939.70x = 19,186,589.14
  5. Step 5: Solve for x
    x = 19,186,589.14/4,939.70
  6. Step 6: Final answer
    x = 3,884.16

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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.