Home / 1,812.31-2,703.71-1,762.09

Finding the Fourth Proportional to 1,812.31, 2,703.71 and 1,762.09

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Solution

The fourth proportional to 1,812.31, 2,703.71 and 1,762.09 is: 2,628.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.31 : 2,703.71 = 1,762.09 : x
  2. Step 2: Convert to fraction form
    1,812.31/2,703.71 = 1,762.09/x
  3. Step 3: Cross multiply
    1,812.31x = 2,703.71 × 1,762.09
  4. Step 4: Simplify right side
    1,812.31x = 4,764,178.00
  5. Step 5: Solve for x
    x = 4,764,178.00/1,812.31
  6. Step 6: Final answer
    x = 2,628.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.