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Finding the Fourth Proportional to 6,188, 9,281.40 and 2,292.40

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Solution

The fourth proportional to 6,188, 9,281.40 and 2,292.40 is: 3,438.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,188 : 9,281.40 = 2,292.40 : x
  2. Step 2: Convert to fraction form
    6,188/9,281.40 = 2,292.40/x
  3. Step 3: Cross multiply
    6,188x = 9,281.40 × 2,292.40
  4. Step 4: Simplify right side
    6,188x = 21,276,681.36
  5. Step 5: Solve for x
    x = 21,276,681.36/6,188
  6. Step 6: Final answer
    x = 3,438.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.