Home / 7,140.26-10,712.36-2,982.23

Finding the Fourth Proportional to 7,140.26, 10,712.36 and 2,982.23

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Solution

The fourth proportional to 7,140.26, 10,712.36 and 2,982.23 is: 4,474.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.26 : 10,712.36 = 2,982.23 : x
  2. Step 2: Convert to fraction form
    7,140.26/10,712.36 = 2,982.23/x
  3. Step 3: Cross multiply
    7,140.26x = 10,712.36 × 2,982.23
  4. Step 4: Simplify right side
    7,140.26x = 31,946,675.26
  5. Step 5: Solve for x
    x = 31,946,675.26/7,140.26
  6. Step 6: Final answer
    x = 4,474.16

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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.