Home / 3,075.46-4,242.78-2,080.38

Finding the Fourth Proportional to 3,075.46, 4,242.78 and 2,080.38

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Solution

The fourth proportional to 3,075.46, 4,242.78 and 2,080.38 is: 2,870.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.46 : 4,242.78 = 2,080.38 : x
  2. Step 2: Convert to fraction form
    3,075.46/4,242.78 = 2,080.38/x
  3. Step 3: Cross multiply
    3,075.46x = 4,242.78 × 2,080.38
  4. Step 4: Simplify right side
    3,075.46x = 8,826,594.66
  5. Step 5: Solve for x
    x = 8,826,594.66/3,075.46
  6. Step 6: Final answer
    x = 2,870.01

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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.