Home / 6,428.16-8,873.42-4,191.98

Finding the Fourth Proportional to 6,428.16, 8,873.42 and 4,191.98

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Solution

The fourth proportional to 6,428.16, 8,873.42 and 4,191.98 is: 5,786.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.16 : 8,873.42 = 4,191.98 : x
  2. Step 2: Convert to fraction form
    6,428.16/8,873.42 = 4,191.98/x
  3. Step 3: Cross multiply
    6,428.16x = 8,873.42 × 4,191.98
  4. Step 4: Simplify right side
    6,428.16x = 37,197,133.84
  5. Step 5: Solve for x
    x = 37,197,133.84/6,428.16
  6. Step 6: Final answer
    x = 5,786.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.