Home / 1,918.94-2,646.50-1,162.54

Finding the Fourth Proportional to 1,918.94, 2,646.50 and 1,162.54

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Solution

The fourth proportional to 1,918.94, 2,646.50 and 1,162.54 is: 1,603.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918.94 : 2,646.50 = 1,162.54 : x
  2. Step 2: Convert to fraction form
    1,918.94/2,646.50 = 1,162.54/x
  3. Step 3: Cross multiply
    1,918.94x = 2,646.50 × 1,162.54
  4. Step 4: Simplify right side
    1,918.94x = 3,076,675.22
  5. Step 5: Solve for x
    x = 3,076,675.22/1,918.94
  6. Step 6: Final answer
    x = 1,603.32

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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.