Home / 4,201.20-6,303.42-1,280.34

Finding the Fourth Proportional to 4,201.20, 6,303.42 and 1,280.34

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Solution

The fourth proportional to 4,201.20, 6,303.42 and 1,280.34 is: 1,921.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,201.20 : 6,303.42 = 1,280.34 : x
  2. Step 2: Convert to fraction form
    4,201.20/6,303.42 = 1,280.34/x
  3. Step 3: Cross multiply
    4,201.20x = 6,303.42 × 1,280.34
  4. Step 4: Simplify right side
    4,201.20x = 8,070,520.76
  5. Step 5: Solve for x
    x = 8,070,520.76/4,201.20
  6. Step 6: Final answer
    x = 1,921.00

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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.