Home / 4,915.37-6,782.90-2,790.34

Finding the Fourth Proportional to 4,915.37, 6,782.90 and 2,790.34

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Solution

The fourth proportional to 4,915.37, 6,782.90 and 2,790.34 is: 3,850.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.37 : 6,782.90 = 2,790.34 : x
  2. Step 2: Convert to fraction form
    4,915.37/6,782.90 = 2,790.34/x
  3. Step 3: Cross multiply
    4,915.37x = 6,782.90 × 2,790.34
  4. Step 4: Simplify right side
    4,915.37x = 18,926,597.19
  5. Step 5: Solve for x
    x = 18,926,597.19/4,915.37
  6. Step 6: Final answer
    x = 3,850.49

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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.