Home / 2,150.30-3,225.53-669.67

Finding the Fourth Proportional to 2,150.30, 3,225.53 and 669.67

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Solution

The fourth proportional to 2,150.30, 3,225.53 and 669.67 is: 1,004.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,150.30 : 3,225.53 = 669.67 : x
  2. Step 2: Convert to fraction form
    2,150.30/3,225.53 = 669.67/x
  3. Step 3: Cross multiply
    2,150.30x = 3,225.53 × 669.67
  4. Step 4: Simplify right side
    2,150.30x = 2,160,034.29
  5. Step 5: Solve for x
    x = 2,160,034.29/2,150.30
  6. Step 6: Final answer
    x = 1,004.53

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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.