Home / 4,201.55-6,303.27-1,428.23

Finding the Fourth Proportional to 4,201.55, 6,303.27 and 1,428.23

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Solution

The fourth proportional to 4,201.55, 6,303.27 and 1,428.23 is: 2,142.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,201.55 : 6,303.27 = 1,428.23 : x
  2. Step 2: Convert to fraction form
    4,201.55/6,303.27 = 1,428.23/x
  3. Step 3: Cross multiply
    4,201.55x = 6,303.27 × 1,428.23
  4. Step 4: Simplify right side
    4,201.55x = 9,002,532.39
  5. Step 5: Solve for x
    x = 9,002,532.39/4,201.55
  6. Step 6: Final answer
    x = 2,142.67

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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.