Home / 4,810.60-6,640.14-2,821.96

Finding the Fourth Proportional to 4,810.60, 6,640.14 and 2,821.96

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Solution

The fourth proportional to 4,810.60, 6,640.14 and 2,821.96 is: 3,895.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,810.60 : 6,640.14 = 2,821.96 : x
  2. Step 2: Convert to fraction form
    4,810.60/6,640.14 = 2,821.96/x
  3. Step 3: Cross multiply
    4,810.60x = 6,640.14 × 2,821.96
  4. Step 4: Simplify right side
    4,810.60x = 18,738,209.47
  5. Step 5: Solve for x
    x = 18,738,209.47/4,810.60
  6. Step 6: Final answer
    x = 3,895.19

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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.