Home / 4,915.20-6,788.48-3,809.50

Finding the Fourth Proportional to 4,915.20, 6,788.48 and 3,809.50

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Solution

The fourth proportional to 4,915.20, 6,788.48 and 3,809.50 is: 5,261.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.20 : 6,788.48 = 3,809.50 : x
  2. Step 2: Convert to fraction form
    4,915.20/6,788.48 = 3,809.50/x
  3. Step 3: Cross multiply
    4,915.20x = 6,788.48 × 3,809.50
  4. Step 4: Simplify right side
    4,915.20x = 25,860,714.56
  5. Step 5: Solve for x
    x = 25,860,714.56/4,915.20
  6. Step 6: Final answer
    x = 5,261.38

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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.