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Finding the Fourth Proportional to 6,269.40, 8,658.63 and 4,869.99

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Solution

The fourth proportional to 6,269.40, 8,658.63 and 4,869.99 is: 6,725.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,269.40 : 8,658.63 = 4,869.99 : x
  2. Step 2: Convert to fraction form
    6,269.40/8,658.63 = 4,869.99/x
  3. Step 3: Cross multiply
    6,269.40x = 8,658.63 × 4,869.99
  4. Step 4: Simplify right side
    6,269.40x = 42,167,441.51
  5. Step 5: Solve for x
    x = 42,167,441.51/6,269.40
  6. Step 6: Final answer
    x = 6,725.91

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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.