Home / 3,907.18-5,392.05-2,228.86

Finding the Fourth Proportional to 3,907.18, 5,392.05 and 2,228.86

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Solution

The fourth proportional to 3,907.18, 5,392.05 and 2,228.86 is: 3,075.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.18 : 5,392.05 = 2,228.86 : x
  2. Step 2: Convert to fraction form
    3,907.18/5,392.05 = 2,228.86/x
  3. Step 3: Cross multiply
    3,907.18x = 5,392.05 × 2,228.86
  4. Step 4: Simplify right side
    3,907.18x = 12,018,119.44
  5. Step 5: Solve for x
    x = 12,018,119.44/3,907.18
  6. Step 6: Final answer
    x = 3,075.91

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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.