Home / 7,281.26-10,921.90-4,831.70

Finding the Fourth Proportional to 7,281.26, 10,921.90 and 4,831.70

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Solution

The fourth proportional to 7,281.26, 10,921.90 and 4,831.70 is: 7,247.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.26 : 10,921.90 = 4,831.70 : x
  2. Step 2: Convert to fraction form
    7,281.26/10,921.90 = 4,831.70/x
  3. Step 3: Cross multiply
    7,281.26x = 10,921.90 × 4,831.70
  4. Step 4: Simplify right side
    7,281.26x = 52,771,344.23
  5. Step 5: Solve for x
    x = 52,771,344.23/7,281.26
  6. Step 6: Final answer
    x = 7,247.56

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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.