Home / 4,976.32-6,867.32-2,880.40

Finding the Fourth Proportional to 4,976.32, 6,867.32 and 2,880.40

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Solution

The fourth proportional to 4,976.32, 6,867.32 and 2,880.40 is: 3,974.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,976.32 : 6,867.32 = 2,880.40 : x
  2. Step 2: Convert to fraction form
    4,976.32/6,867.32 = 2,880.40/x
  3. Step 3: Cross multiply
    4,976.32x = 6,867.32 × 2,880.40
  4. Step 4: Simplify right side
    4,976.32x = 19,780,628.53
  5. Step 5: Solve for x
    x = 19,780,628.53/4,976.32
  6. Step 6: Final answer
    x = 3,974.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.