Home / 3,501.21-4,831.86-2,009.12

Finding the Fourth Proportional to 3,501.21, 4,831.86 and 2,009.12

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Solution

The fourth proportional to 3,501.21, 4,831.86 and 2,009.12 is: 2,772.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,501.21 : 4,831.86 = 2,009.12 : x
  2. Step 2: Convert to fraction form
    3,501.21/4,831.86 = 2,009.12/x
  3. Step 3: Cross multiply
    3,501.21x = 4,831.86 × 2,009.12
  4. Step 4: Simplify right side
    3,501.21x = 9,707,762.40
  5. Step 5: Solve for x
    x = 9,707,762.40/3,501.21
  6. Step 6: Final answer
    x = 2,772.69

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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.