Home / 4,812.48-7,220.16-2,215.44

Finding the Fourth Proportional to 4,812.48, 7,220.16 and 2,215.44

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Solution

The fourth proportional to 4,812.48, 7,220.16 and 2,215.44 is: 3,323.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.48 : 7,220.16 = 2,215.44 : x
  2. Step 2: Convert to fraction form
    4,812.48/7,220.16 = 2,215.44/x
  3. Step 3: Cross multiply
    4,812.48x = 7,220.16 × 2,215.44
  4. Step 4: Simplify right side
    4,812.48x = 15,995,831.27
  5. Step 5: Solve for x
    x = 15,995,831.27/4,812.48
  6. Step 6: Final answer
    x = 3,323.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.