Home / 2,942.80-4,392.74-2,748.24

Finding the Fourth Proportional to 2,942.80, 4,392.74 and 2,748.24

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Solution

The fourth proportional to 2,942.80, 4,392.74 and 2,748.24 is: 4,102.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.80 : 4,392.74 = 2,748.24 : x
  2. Step 2: Convert to fraction form
    2,942.80/4,392.74 = 2,748.24/x
  3. Step 3: Cross multiply
    2,942.80x = 4,392.74 × 2,748.24
  4. Step 4: Simplify right side
    2,942.80x = 12,072,303.78
  5. Step 5: Solve for x
    x = 12,072,303.78/2,942.80
  6. Step 6: Final answer
    x = 4,102.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.