Home / 2,075.28-3,108.86-1,251.10

Finding the Fourth Proportional to 2,075.28, 3,108.86 and 1,251.10

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Solution

The fourth proportional to 2,075.28, 3,108.86 and 1,251.10 is: 1,874.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,075.28 : 3,108.86 = 1,251.10 : x
  2. Step 2: Convert to fraction form
    2,075.28/3,108.86 = 1,251.10/x
  3. Step 3: Cross multiply
    2,075.28x = 3,108.86 × 1,251.10
  4. Step 4: Simplify right side
    2,075.28x = 3,889,494.75
  5. Step 5: Solve for x
    x = 3,889,494.75/2,075.28
  6. Step 6: Final answer
    x = 1,874.20

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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.