Home / 6,288.36-8,678.01-3,455.79

Finding the Fourth Proportional to 6,288.36, 8,678.01 and 3,455.79

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Solution

The fourth proportional to 6,288.36, 8,678.01 and 3,455.79 is: 4,769.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.36 : 8,678.01 = 3,455.79 : x
  2. Step 2: Convert to fraction form
    6,288.36/8,678.01 = 3,455.79/x
  3. Step 3: Cross multiply
    6,288.36x = 8,678.01 × 3,455.79
  4. Step 4: Simplify right side
    6,288.36x = 29,989,380.18
  5. Step 5: Solve for x
    x = 29,989,380.18/6,288.36
  6. Step 6: Final answer
    x = 4,769.03

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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.