Home / 3,511.74-4,831.91-3,220.14

Finding the Fourth Proportional to 3,511.74, 4,831.91 and 3,220.14

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Solution

The fourth proportional to 3,511.74, 4,831.91 and 3,220.14 is: 4,430.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.74 : 4,831.91 = 3,220.14 : x
  2. Step 2: Convert to fraction form
    3,511.74/4,831.91 = 3,220.14/x
  3. Step 3: Cross multiply
    3,511.74x = 4,831.91 × 3,220.14
  4. Step 4: Simplify right side
    3,511.74x = 15,559,426.67
  5. Step 5: Solve for x
    x = 15,559,426.67/3,511.74
  6. Step 6: Final answer
    x = 4,430.69

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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.