Home / 6,485.47-9,727.39-1,805.83

Finding the Fourth Proportional to 6,485.47, 9,727.39 and 1,805.83

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Solution

The fourth proportional to 6,485.47, 9,727.39 and 1,805.83 is: 2,708.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,485.47 : 9,727.39 = 1,805.83 : x
  2. Step 2: Convert to fraction form
    6,485.47/9,727.39 = 1,805.83/x
  3. Step 3: Cross multiply
    6,485.47x = 9,727.39 × 1,805.83
  4. Step 4: Simplify right side
    6,485.47x = 17,566,012.68
  5. Step 5: Solve for x
    x = 17,566,012.68/6,485.47
  6. Step 6: Final answer
    x = 2,708.52

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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.