Home / 7,114.45-10,671.67-1,920.32

Finding the Fourth Proportional to 7,114.45, 10,671.67 and 1,920.32

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Solution

The fourth proportional to 7,114.45, 10,671.67 and 1,920.32 is: 2,880.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,114.45 : 10,671.67 = 1,920.32 : x
  2. Step 2: Convert to fraction form
    7,114.45/10,671.67 = 1,920.32/x
  3. Step 3: Cross multiply
    7,114.45x = 10,671.67 × 1,920.32
  4. Step 4: Simplify right side
    7,114.45x = 20,493,021.33
  5. Step 5: Solve for x
    x = 20,493,021.33/7,114.45
  6. Step 6: Final answer
    x = 2,880.48

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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.