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Finding the Fourth Proportional to 6,437.94, 8,890.02 and 6,228.78

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Solution

The fourth proportional to 6,437.94, 8,890.02 and 6,228.78 is: 8,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,437.94 : 8,890.02 = 6,228.78 : x
  2. Step 2: Convert to fraction form
    6,437.94/8,890.02 = 6,228.78/x
  3. Step 3: Cross multiply
    6,437.94x = 8,890.02 × 6,228.78
  4. Step 4: Simplify right side
    6,437.94x = 55,373,978.78
  5. Step 5: Solve for x
    x = 55,373,978.78/6,437.94
  6. Step 6: Final answer
    x = 8,601.20

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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.