Home / 3,656.55-5,485.65-1,707.69

Finding the Fourth Proportional to 3,656.55, 5,485.65 and 1,707.69

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Solution

The fourth proportional to 3,656.55, 5,485.65 and 1,707.69 is: 2,561.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,656.55 : 5,485.65 = 1,707.69 : x
  2. Step 2: Convert to fraction form
    3,656.55/5,485.65 = 1,707.69/x
  3. Step 3: Cross multiply
    3,656.55x = 5,485.65 × 1,707.69
  4. Step 4: Simplify right side
    3,656.55x = 9,367,789.65
  5. Step 5: Solve for x
    x = 9,367,789.65/3,656.55
  6. Step 6: Final answer
    x = 2,561.92

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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.