Home / 1,890.66-2,852.90-1,814.81

Finding the Fourth Proportional to 1,890.66, 2,852.90 and 1,814.81

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Solution

The fourth proportional to 1,890.66, 2,852.90 and 1,814.81 is: 2,738.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.66 : 2,852.90 = 1,814.81 : x
  2. Step 2: Convert to fraction form
    1,890.66/2,852.90 = 1,814.81/x
  3. Step 3: Cross multiply
    1,890.66x = 2,852.90 × 1,814.81
  4. Step 4: Simplify right side
    1,890.66x = 5,177,465.12
  5. Step 5: Solve for x
    x = 5,177,465.12/1,890.66
  6. Step 6: Final answer
    x = 2,738.45

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.