Home / 7,220.49-10,831.93-2,291.31

Finding the Fourth Proportional to 7,220.49, 10,831.93 and 2,291.31

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Solution

The fourth proportional to 7,220.49, 10,831.93 and 2,291.31 is: 3,437.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.49 : 10,831.93 = 2,291.31 : x
  2. Step 2: Convert to fraction form
    7,220.49/10,831.93 = 2,291.31/x
  3. Step 3: Cross multiply
    7,220.49x = 10,831.93 × 2,291.31
  4. Step 4: Simplify right side
    7,220.49x = 24,819,309.53
  5. Step 5: Solve for x
    x = 24,819,309.53/7,220.49
  6. Step 6: Final answer
    x = 3,437.34

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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.