Home / 7,831.44-10,805.76-4,645.80

Finding the Fourth Proportional to 7,831.44, 10,805.76 and 4,645.80

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Solution

The fourth proportional to 7,831.44, 10,805.76 and 4,645.80 is: 6,410.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.44 : 10,805.76 = 4,645.80 : x
  2. Step 2: Convert to fraction form
    7,831.44/10,805.76 = 4,645.80/x
  3. Step 3: Cross multiply
    7,831.44x = 10,805.76 × 4,645.80
  4. Step 4: Simplify right side
    7,831.44x = 50,201,399.81
  5. Step 5: Solve for x
    x = 50,201,399.81/7,831.44
  6. Step 6: Final answer
    x = 6,410.24

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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.