Home / 3,075.14-4,243.74-1,677.86

Finding the Fourth Proportional to 3,075.14, 4,243.74 and 1,677.86

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Solution

The fourth proportional to 3,075.14, 4,243.74 and 1,677.86 is: 2,315.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.14 : 4,243.74 = 1,677.86 : x
  2. Step 2: Convert to fraction form
    3,075.14/4,243.74 = 1,677.86/x
  3. Step 3: Cross multiply
    3,075.14x = 4,243.74 × 1,677.86
  4. Step 4: Simplify right side
    3,075.14x = 7,120,401.60
  5. Step 5: Solve for x
    x = 7,120,401.60/3,075.14
  6. Step 6: Final answer
    x = 2,315.47

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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.