Home / 4,915.20-6,778.32-3,237.92

Finding the Fourth Proportional to 4,915.20, 6,778.32 and 3,237.92

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Solution

The fourth proportional to 4,915.20, 6,778.32 and 3,237.92 is: 4,465.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.20 : 6,778.32 = 3,237.92 : x
  2. Step 2: Convert to fraction form
    4,915.20/6,778.32 = 3,237.92/x
  3. Step 3: Cross multiply
    4,915.20x = 6,778.32 × 3,237.92
  4. Step 4: Simplify right side
    4,915.20x = 21,947,657.89
  5. Step 5: Solve for x
    x = 21,947,657.89/4,915.20
  6. Step 6: Final answer
    x = 4,465.26

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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.