Home / 7,140.32-10,712.30-2,982.18

Finding the Fourth Proportional to 7,140.32, 10,712.30 and 2,982.18

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Solution

The fourth proportional to 7,140.32, 10,712.30 and 2,982.18 is: 4,474.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.32 : 10,712.30 = 2,982.18 : x
  2. Step 2: Convert to fraction form
    7,140.32/10,712.30 = 2,982.18/x
  3. Step 3: Cross multiply
    7,140.32x = 10,712.30 × 2,982.18
  4. Step 4: Simplify right side
    7,140.32x = 31,945,991.90
  5. Step 5: Solve for x
    x = 31,945,991.90/7,140.32
  6. Step 6: Final answer
    x = 4,474.03

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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.