Home / 7,143.58-10,715.37-1,949.44

Finding the Fourth Proportional to 7,143.58, 10,715.37 and 1,949.44

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Solution

The fourth proportional to 7,143.58, 10,715.37 and 1,949.44 is: 2,924.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.58 : 10,715.37 = 1,949.44 : x
  2. Step 2: Convert to fraction form
    7,143.58/10,715.37 = 1,949.44/x
  3. Step 3: Cross multiply
    7,143.58x = 10,715.37 × 1,949.44
  4. Step 4: Simplify right side
    7,143.58x = 20,888,970.89
  5. Step 5: Solve for x
    x = 20,888,970.89/7,143.58
  6. Step 6: Final answer
    x = 2,924.16

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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.