Home / 6,387.21-8,814.68-3,554.59

Finding the Fourth Proportional to 6,387.21, 8,814.68 and 3,554.59

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Solution

The fourth proportional to 6,387.21, 8,814.68 and 3,554.59 is: 4,905.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.21 : 8,814.68 = 3,554.59 : x
  2. Step 2: Convert to fraction form
    6,387.21/8,814.68 = 3,554.59/x
  3. Step 3: Cross multiply
    6,387.21x = 8,814.68 × 3,554.59
  4. Step 4: Simplify right side
    6,387.21x = 31,332,573.38
  5. Step 5: Solve for x
    x = 31,332,573.38/6,387.21
  6. Step 6: Final answer
    x = 4,905.52

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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.