Home / 4,810.26-6,638.74-2,821.58

Finding the Fourth Proportional to 4,810.26, 6,638.74 and 2,821.58

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Solution

The fourth proportional to 4,810.26, 6,638.74 and 2,821.58 is: 3,894.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,810.26 : 6,638.74 = 2,821.58 : x
  2. Step 2: Convert to fraction form
    4,810.26/6,638.74 = 2,821.58/x
  3. Step 3: Cross multiply
    4,810.26x = 6,638.74 × 2,821.58
  4. Step 4: Simplify right side
    4,810.26x = 18,731,736.01
  5. Step 5: Solve for x
    x = 18,731,736.01/4,810.26
  6. Step 6: Final answer
    x = 3,894.12

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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.