Home / 4,200.41-6,300.62-1,278.74

Finding the Fourth Proportional to 4,200.41, 6,300.62 and 1,278.74

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Solution

The fourth proportional to 4,200.41, 6,300.62 and 1,278.74 is: 1,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.41 : 6,300.62 = 1,278.74 : x
  2. Step 2: Convert to fraction form
    4,200.41/6,300.62 = 1,278.74/x
  3. Step 3: Cross multiply
    4,200.41x = 6,300.62 × 1,278.74
  4. Step 4: Simplify right side
    4,200.41x = 8,056,816.92
  5. Step 5: Solve for x
    x = 8,056,816.92/4,200.41
  6. Step 6: Final answer
    x = 1,918.10

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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.