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Finding the Fourth Proportional to 6,319.89, 9,435.24 and 4,831.25

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Solution

The fourth proportional to 6,319.89, 9,435.24 and 4,831.25 is: 7,212.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.89 : 9,435.24 = 4,831.25 : x
  2. Step 2: Convert to fraction form
    6,319.89/9,435.24 = 4,831.25/x
  3. Step 3: Cross multiply
    6,319.89x = 9,435.24 × 4,831.25
  4. Step 4: Simplify right side
    6,319.89x = 45,583,956.07
  5. Step 5: Solve for x
    x = 45,583,956.07/6,319.89
  6. Step 6: Final answer
    x = 7,212.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.