Home / 7,153.60-10,729.68-1,960.24

Finding the Fourth Proportional to 7,153.60, 10,729.68 and 1,960.24

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Solution

The fourth proportional to 7,153.60, 10,729.68 and 1,960.24 is: 2,940.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.60 : 10,729.68 = 1,960.24 : x
  2. Step 2: Convert to fraction form
    7,153.60/10,729.68 = 1,960.24/x
  3. Step 3: Cross multiply
    7,153.60x = 10,729.68 × 1,960.24
  4. Step 4: Simplify right side
    7,153.60x = 21,032,747.92
  5. Step 5: Solve for x
    x = 21,032,747.92/7,153.60
  6. Step 6: Final answer
    x = 2,940.16

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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.