Home / 4,202.72-6,304.80-1,280.32

Finding the Fourth Proportional to 4,202.72, 6,304.80 and 1,280.32

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Solution

The fourth proportional to 4,202.72, 6,304.80 and 1,280.32 is: 1,920.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,202.72 : 6,304.80 = 1,280.32 : x
  2. Step 2: Convert to fraction form
    4,202.72/6,304.80 = 1,280.32/x
  3. Step 3: Cross multiply
    4,202.72x = 6,304.80 × 1,280.32
  4. Step 4: Simplify right side
    4,202.72x = 8,072,161.54
  5. Step 5: Solve for x
    x = 8,072,161.54/4,202.72
  6. Step 6: Final answer
    x = 1,920.70

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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.