Home / 1,918.09-2,647.10-1,132.59

Finding the Fourth Proportional to 1,918.09, 2,647.10 and 1,132.59

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Solution

The fourth proportional to 1,918.09, 2,647.10 and 1,132.59 is: 1,563.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918.09 : 2,647.10 = 1,132.59 : x
  2. Step 2: Convert to fraction form
    1,918.09/2,647.10 = 1,132.59/x
  3. Step 3: Cross multiply
    1,918.09x = 2,647.10 × 1,132.59
  4. Step 4: Simplify right side
    1,918.09x = 2,998,078.99
  5. Step 5: Solve for x
    x = 2,998,078.99/1,918.09
  6. Step 6: Final answer
    x = 1,563.05

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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.