Home / 6,288.45-8,678.01-3,455.85

Finding the Fourth Proportional to 6,288.45, 8,678.01 and 3,455.85

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Solution

The fourth proportional to 6,288.45, 8,678.01 and 3,455.85 is: 4,769.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.45 : 8,678.01 = 3,455.85 : x
  2. Step 2: Convert to fraction form
    6,288.45/8,678.01 = 3,455.85/x
  3. Step 3: Cross multiply
    6,288.45x = 8,678.01 × 3,455.85
  4. Step 4: Simplify right side
    6,288.45x = 29,989,857.47
  5. Step 5: Solve for x
    x = 29,989,857.47/6,288.45
  6. Step 6: Final answer
    x = 4,769.04

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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.