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Finding the Fourth Proportional to 6,810.63, 10,215.18 and 1,880.97

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Solution

The fourth proportional to 6,810.63, 10,215.18 and 1,880.97 is: 2,821.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,810.63 : 10,215.18 = 1,880.97 : x
  2. Step 2: Convert to fraction form
    6,810.63/10,215.18 = 1,880.97/x
  3. Step 3: Cross multiply
    6,810.63x = 10,215.18 × 1,880.97
  4. Step 4: Simplify right side
    6,810.63x = 19,214,447.12
  5. Step 5: Solve for x
    x = 19,214,447.12/6,810.63
  6. Step 6: Final answer
    x = 2,821.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.