Home / 2,767.13-3,814.58-2,102.81

Finding the Fourth Proportional to 2,767.13, 3,814.58 and 2,102.81

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Solution

The fourth proportional to 2,767.13, 3,814.58 and 2,102.81 is: 2,898.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.13 : 3,814.58 = 2,102.81 : x
  2. Step 2: Convert to fraction form
    2,767.13/3,814.58 = 2,102.81/x
  3. Step 3: Cross multiply
    2,767.13x = 3,814.58 × 2,102.81
  4. Step 4: Simplify right side
    2,767.13x = 8,021,307.38
  5. Step 5: Solve for x
    x = 8,021,307.38/2,767.13
  6. Step 6: Final answer
    x = 2,898.79

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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.