Home / 1,851.90-2,555.79-1,055.37

Finding the Fourth Proportional to 1,851.90, 2,555.79 and 1,055.37

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Solution

The fourth proportional to 1,851.90, 2,555.79 and 1,055.37 is: 1,456.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.90 : 2,555.79 = 1,055.37 : x
  2. Step 2: Convert to fraction form
    1,851.90/2,555.79 = 1,055.37/x
  3. Step 3: Cross multiply
    1,851.90x = 2,555.79 × 1,055.37
  4. Step 4: Simplify right side
    1,851.90x = 2,697,304.09
  5. Step 5: Solve for x
    x = 2,697,304.09/1,851.90
  6. Step 6: Final answer
    x = 1,456.51

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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.