Home / 6,790.10-9,371.19-3,957.60

Finding the Fourth Proportional to 6,790.10, 9,371.19 and 3,957.60

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Solution

The fourth proportional to 6,790.10, 9,371.19 and 3,957.60 is: 5,461.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,790.10 : 9,371.19 = 3,957.60 : x
  2. Step 2: Convert to fraction form
    6,790.10/9,371.19 = 3,957.60/x
  3. Step 3: Cross multiply
    6,790.10x = 9,371.19 × 3,957.60
  4. Step 4: Simplify right side
    6,790.10x = 37,087,421.54
  5. Step 5: Solve for x
    x = 37,087,421.54/6,790.10
  6. Step 6: Final answer
    x = 5,461.99

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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.