Home / 2,880.06-3,972.87-1,946.94

Finding the Fourth Proportional to 2,880.06, 3,972.87 and 1,946.94

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Solution

The fourth proportional to 2,880.06, 3,972.87 and 1,946.94 is: 2,685.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.06 : 3,972.87 = 1,946.94 : x
  2. Step 2: Convert to fraction form
    2,880.06/3,972.87 = 1,946.94/x
  3. Step 3: Cross multiply
    2,880.06x = 3,972.87 × 1,946.94
  4. Step 4: Simplify right side
    2,880.06x = 7,734,939.52
  5. Step 5: Solve for x
    x = 7,734,939.52/2,880.06
  6. Step 6: Final answer
    x = 2,685.69

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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.