Home / 4,930.40-6,803.34-2,806.21

Finding the Fourth Proportional to 4,930.40, 6,803.34 and 2,806.21

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Solution

The fourth proportional to 4,930.40, 6,803.34 and 2,806.21 is: 3,872.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.40 : 6,803.34 = 2,806.21 : x
  2. Step 2: Convert to fraction form
    4,930.40/6,803.34 = 2,806.21/x
  3. Step 3: Cross multiply
    4,930.40x = 6,803.34 × 2,806.21
  4. Step 4: Simplify right side
    4,930.40x = 19,091,566.72
  5. Step 5: Solve for x
    x = 19,091,566.72/4,930.40
  6. Step 6: Final answer
    x = 3,872.22

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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.