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Finding the Fourth Proportional to 6,651.55, 9,177.55 and 3,779.65

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Solution

The fourth proportional to 6,651.55, 9,177.55 and 3,779.65 is: 5,215.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.55 : 9,177.55 = 3,779.65 : x
  2. Step 2: Convert to fraction form
    6,651.55/9,177.55 = 3,779.65/x
  3. Step 3: Cross multiply
    6,651.55x = 9,177.55 × 3,779.65
  4. Step 4: Simplify right side
    6,651.55x = 34,687,898.52
  5. Step 5: Solve for x
    x = 34,687,898.52/6,651.55
  6. Step 6: Final answer
    x = 5,215.01

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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.