Home / 5,075.66-7,610.76-2,112.28

Finding the Fourth Proportional to 5,075.66, 7,610.76 and 2,112.28

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Solution

The fourth proportional to 5,075.66, 7,610.76 and 2,112.28 is: 3,167.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.66 : 7,610.76 = 2,112.28 : x
  2. Step 2: Convert to fraction form
    5,075.66/7,610.76 = 2,112.28/x
  3. Step 3: Cross multiply
    5,075.66x = 7,610.76 × 2,112.28
  4. Step 4: Simplify right side
    5,075.66x = 16,076,037.11
  5. Step 5: Solve for x
    x = 16,076,037.11/5,075.66
  6. Step 6: Final answer
    x = 3,167.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.