Home / 3,408.04-4,702.54-1,915.76

Finding the Fourth Proportional to 3,408.04, 4,702.54 and 1,915.76

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Solution

The fourth proportional to 3,408.04, 4,702.54 and 1,915.76 is: 2,643.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.04 : 4,702.54 = 1,915.76 : x
  2. Step 2: Convert to fraction form
    3,408.04/4,702.54 = 1,915.76/x
  3. Step 3: Cross multiply
    3,408.04x = 4,702.54 × 1,915.76
  4. Step 4: Simplify right side
    3,408.04x = 9,008,938.03
  5. Step 5: Solve for x
    x = 9,008,938.03/3,408.04
  6. Step 6: Final answer
    x = 2,643.44

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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.