Home / 2,961.63-4,075.25-2,871.45

Finding the Fourth Proportional to 2,961.63, 4,075.25 and 2,871.45

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Solution

The fourth proportional to 2,961.63, 4,075.25 and 2,871.45 is: 3,951.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.63 : 4,075.25 = 2,871.45 : x
  2. Step 2: Convert to fraction form
    2,961.63/4,075.25 = 2,871.45/x
  3. Step 3: Cross multiply
    2,961.63x = 4,075.25 × 2,871.45
  4. Step 4: Simplify right side
    2,961.63x = 11,701,862.26
  5. Step 5: Solve for x
    x = 11,701,862.26/2,961.63
  6. Step 6: Final answer
    x = 3,951.16

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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.