Home / 7,831.89-10,808.30-4,295.09

Finding the Fourth Proportional to 7,831.89, 10,808.30 and 4,295.09

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Solution

The fourth proportional to 7,831.89, 10,808.30 and 4,295.09 is: 5,927.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.89 : 10,808.30 = 4,295.09 : x
  2. Step 2: Convert to fraction form
    7,831.89/10,808.30 = 4,295.09/x
  3. Step 3: Cross multiply
    7,831.89x = 10,808.30 × 4,295.09
  4. Step 4: Simplify right side
    7,831.89x = 46,422,659.01
  5. Step 5: Solve for x
    x = 46,422,659.01/7,831.89
  6. Step 6: Final answer
    x = 5,927.39

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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.