Home / 7,220.48-10,831.10-2,290.50

Finding the Fourth Proportional to 7,220.48, 10,831.10 and 2,290.50

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Solution

The fourth proportional to 7,220.48, 10,831.10 and 2,290.50 is: 3,435.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.48 : 10,831.10 = 2,290.50 : x
  2. Step 2: Convert to fraction form
    7,220.48/10,831.10 = 2,290.50/x
  3. Step 3: Cross multiply
    7,220.48x = 10,831.10 × 2,290.50
  4. Step 4: Simplify right side
    7,220.48x = 24,808,623.10
  5. Step 5: Solve for x
    x = 24,808,623.10/7,220.48
  6. Step 6: Final answer
    x = 3,435.87

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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.