Home / 3,075.36-4,635.24-2,647.68

Finding the Fourth Proportional to 3,075.36, 4,635.24 and 2,647.68

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Solution

The fourth proportional to 3,075.36, 4,635.24 and 2,647.68 is: 3,990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.36 : 4,635.24 = 2,647.68 : x
  2. Step 2: Convert to fraction form
    3,075.36/4,635.24 = 2,647.68/x
  3. Step 3: Cross multiply
    3,075.36x = 4,635.24 × 2,647.68
  4. Step 4: Simplify right side
    3,075.36x = 12,272,632.24
  5. Step 5: Solve for x
    x = 12,272,632.24/3,075.36
  6. Step 6: Final answer
    x = 3,990.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.