Home / 2,918.63-4,356.64-2,531.35

Finding the Fourth Proportional to 2,918.63, 4,356.64 and 2,531.35

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Solution

The fourth proportional to 2,918.63, 4,356.64 and 2,531.35 is: 3,778.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.63 : 4,356.64 = 2,531.35 : x
  2. Step 2: Convert to fraction form
    2,918.63/4,356.64 = 2,531.35/x
  3. Step 3: Cross multiply
    2,918.63x = 4,356.64 × 2,531.35
  4. Step 4: Simplify right side
    2,918.63x = 11,028,175.04
  5. Step 5: Solve for x
    x = 11,028,175.04/2,918.63
  6. Step 6: Final answer
    x = 3,778.54

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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.