Home / 4,831.12-7,229.40-2,980.72

Finding the Fourth Proportional to 4,831.12, 7,229.40 and 2,980.72

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Solution

The fourth proportional to 4,831.12, 7,229.40 and 2,980.72 is: 4,460.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,831.12 : 7,229.40 = 2,980.72 : x
  2. Step 2: Convert to fraction form
    4,831.12/7,229.40 = 2,980.72/x
  3. Step 3: Cross multiply
    4,831.12x = 7,229.40 × 2,980.72
  4. Step 4: Simplify right side
    4,831.12x = 21,548,817.17
  5. Step 5: Solve for x
    x = 21,548,817.17/4,831.12
  6. Step 6: Final answer
    x = 4,460.42

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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.