Home / 3,408.16-4,702.82-1,915.84

Finding the Fourth Proportional to 3,408.16, 4,702.82 and 1,915.84

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Solution

The fourth proportional to 3,408.16, 4,702.82 and 1,915.84 is: 2,643.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.16 : 4,702.82 = 1,915.84 : x
  2. Step 2: Convert to fraction form
    3,408.16/4,702.82 = 1,915.84/x
  3. Step 3: Cross multiply
    3,408.16x = 4,702.82 × 1,915.84
  4. Step 4: Simplify right side
    3,408.16x = 9,009,850.67
  5. Step 5: Solve for x
    x = 9,009,850.67/3,408.16
  6. Step 6: Final answer
    x = 2,643.61

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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.