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Finding the Fourth Proportional to 6,580.55, 9,862.18 and 3,118.79

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Solution

The fourth proportional to 6,580.55, 9,862.18 and 3,118.79 is: 4,674.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,580.55 : 9,862.18 = 3,118.79 : x
  2. Step 2: Convert to fraction form
    6,580.55/9,862.18 = 3,118.79/x
  3. Step 3: Cross multiply
    6,580.55x = 9,862.18 × 3,118.79
  4. Step 4: Simplify right side
    6,580.55x = 30,758,068.36
  5. Step 5: Solve for x
    x = 30,758,068.36/6,580.55
  6. Step 6: Final answer
    x = 4,674.09

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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.