Home / 4,931.40-7,378.57-2,949.74

Finding the Fourth Proportional to 4,931.40, 7,378.57 and 2,949.74

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Solution

The fourth proportional to 4,931.40, 7,378.57 and 2,949.74 is: 4,413.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.40 : 7,378.57 = 2,949.74 : x
  2. Step 2: Convert to fraction form
    4,931.40/7,378.57 = 2,949.74/x
  3. Step 3: Cross multiply
    4,931.40x = 7,378.57 × 2,949.74
  4. Step 4: Simplify right side
    4,931.40x = 21,764,863.07
  5. Step 5: Solve for x
    x = 21,764,863.07/4,931.40
  6. Step 6: Final answer
    x = 4,413.53

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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.