Home / 4,228.80-6,342.30-1,888.80

Finding the Fourth Proportional to 4,228.80, 6,342.30 and 1,888.80

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Solution

The fourth proportional to 4,228.80, 6,342.30 and 1,888.80 is: 2,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,228.80 : 6,342.30 = 1,888.80 : x
  2. Step 2: Convert to fraction form
    4,228.80/6,342.30 = 1,888.80/x
  3. Step 3: Cross multiply
    4,228.80x = 6,342.30 × 1,888.80
  4. Step 4: Simplify right side
    4,228.80x = 11,979,336.24
  5. Step 5: Solve for x
    x = 11,979,336.24/4,228.80
  6. Step 6: Final answer
    x = 2,832.80

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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.