Home / 4,200.14-6,300.52-1,278.45

Finding the Fourth Proportional to 4,200.14, 6,300.52 and 1,278.45

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Solution

The fourth proportional to 4,200.14, 6,300.52 and 1,278.45 is: 1,917.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.14 : 6,300.52 = 1,278.45 : x
  2. Step 2: Convert to fraction form
    4,200.14/6,300.52 = 1,278.45/x
  3. Step 3: Cross multiply
    4,200.14x = 6,300.52 × 1,278.45
  4. Step 4: Simplify right side
    4,200.14x = 8,054,896.60
  5. Step 5: Solve for x
    x = 8,054,896.60/4,200.14
  6. Step 6: Final answer
    x = 1,917.77

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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.