Home / 3,501.21-4,831.67-1,929.29

Finding the Fourth Proportional to 3,501.21, 4,831.67 and 1,929.29

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Solution

The fourth proportional to 3,501.21, 4,831.67 and 1,929.29 is: 2,662.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,501.21 : 4,831.67 = 1,929.29 : x
  2. Step 2: Convert to fraction form
    3,501.21/4,831.67 = 1,929.29/x
  3. Step 3: Cross multiply
    3,501.21x = 4,831.67 × 1,929.29
  4. Step 4: Simplify right side
    3,501.21x = 9,321,709.52
  5. Step 5: Solve for x
    x = 9,321,709.52/3,501.21
  6. Step 6: Final answer
    x = 2,662.43

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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.