Home / 4,831.20-7,241.40-2,490.30

Finding the Fourth Proportional to 4,831.20, 7,241.40 and 2,490.30

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Solution

The fourth proportional to 4,831.20, 7,241.40 and 2,490.30 is: 3,732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,831.20 : 7,241.40 = 2,490.30 : x
  2. Step 2: Convert to fraction form
    4,831.20/7,241.40 = 2,490.30/x
  3. Step 3: Cross multiply
    4,831.20x = 7,241.40 × 2,490.30
  4. Step 4: Simplify right side
    4,831.20x = 18,033,258.42
  5. Step 5: Solve for x
    x = 18,033,258.42/4,831.20
  6. Step 6: Final answer
    x = 3,732.67

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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.