Home / 4,915.41-6,782.50-2,819.13

Finding the Fourth Proportional to 4,915.41, 6,782.50 and 2,819.13

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Solution

The fourth proportional to 4,915.41, 6,782.50 and 2,819.13 is: 3,889.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.41 : 6,782.50 = 2,819.13 : x
  2. Step 2: Convert to fraction form
    4,915.41/6,782.50 = 2,819.13/x
  3. Step 3: Cross multiply
    4,915.41x = 6,782.50 × 2,819.13
  4. Step 4: Simplify right side
    4,915.41x = 19,120,749.23
  5. Step 5: Solve for x
    x = 19,120,749.23/4,915.41
  6. Step 6: Final answer
    x = 3,889.96

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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.