Home / 6,140.31-9,205.75-2,851.00

Finding the Fourth Proportional to 6,140.31, 9,205.75 and 2,851.00

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Solution

The fourth proportional to 6,140.31, 9,205.75 and 2,851.00 is: 4,274.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.31 : 9,205.75 = 2,851.00 : x
  2. Step 2: Convert to fraction form
    6,140.31/9,205.75 = 2,851.00/x
  3. Step 3: Cross multiply
    6,140.31x = 9,205.75 × 2,851.00
  4. Step 4: Simplify right side
    6,140.31x = 26,245,573.80
  5. Step 5: Solve for x
    x = 26,245,573.80/6,140.31
  6. Step 6: Final answer
    x = 4,274.31

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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.