Home / 7,150.92-10,722.63-2,990.16

Finding the Fourth Proportional to 7,150.92, 10,722.63 and 2,990.16

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Solution

The fourth proportional to 7,150.92, 10,722.63 and 2,990.16 is: 4,483.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,150.92 : 10,722.63 = 2,990.16 : x
  2. Step 2: Convert to fraction form
    7,150.92/10,722.63 = 2,990.16/x
  3. Step 3: Cross multiply
    7,150.92x = 10,722.63 × 2,990.16
  4. Step 4: Simplify right side
    7,150.92x = 32,062,379.32
  5. Step 5: Solve for x
    x = 32,062,379.32/7,150.92
  6. Step 6: Final answer
    x = 4,483.67

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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.