Home / 3,075.19-4,243.77-1,677.94

Finding the Fourth Proportional to 3,075.19, 4,243.77 and 1,677.94

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Solution

The fourth proportional to 3,075.19, 4,243.77 and 1,677.94 is: 2,315.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.19 : 4,243.77 = 1,677.94 : x
  2. Step 2: Convert to fraction form
    3,075.19/4,243.77 = 1,677.94/x
  3. Step 3: Cross multiply
    3,075.19x = 4,243.77 × 1,677.94
  4. Step 4: Simplify right side
    3,075.19x = 7,120,780.82
  5. Step 5: Solve for x
    x = 7,120,780.82/3,075.19
  6. Step 6: Final answer
    x = 2,315.56

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1.5x scale

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.