Home / 3,769.08-5,653.98-1,689

Finding the Fourth Proportional to 3,769.08, 5,653.98 and 1,689

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Solution

The fourth proportional to 3,769.08, 5,653.98 and 1,689 is: 2,533.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,769.08 : 5,653.98 = 1,689 : x
  2. Step 2: Convert to fraction form
    3,769.08/5,653.98 = 1,689/x
  3. Step 3: Cross multiply
    3,769.08x = 5,653.98 × 1,689
  4. Step 4: Simplify right side
    3,769.08x = 9,549,572.22
  5. Step 5: Solve for x
    x = 9,549,572.22/3,769.08
  6. Step 6: Final answer
    x = 2,533.66

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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.