Home / 3,101.70-4,281.01-1,907.69

Finding the Fourth Proportional to 3,101.70, 4,281.01 and 1,907.69

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Solution

The fourth proportional to 3,101.70, 4,281.01 and 1,907.69 is: 2,633.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.70 : 4,281.01 = 1,907.69 : x
  2. Step 2: Convert to fraction form
    3,101.70/4,281.01 = 1,907.69/x
  3. Step 3: Cross multiply
    3,101.70x = 4,281.01 × 1,907.69
  4. Step 4: Simplify right side
    3,101.70x = 8,166,853.05
  5. Step 5: Solve for x
    x = 8,166,853.05/3,101.70
  6. Step 6: Final answer
    x = 2,633.03

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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.