Home / 6,421.87-9,631.77-2,038.33

Finding the Fourth Proportional to 6,421.87, 9,631.77 and 2,038.33

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Solution

The fourth proportional to 6,421.87, 9,631.77 and 2,038.33 is: 3,057.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.87 : 9,631.77 = 2,038.33 : x
  2. Step 2: Convert to fraction form
    6,421.87/9,631.77 = 2,038.33/x
  3. Step 3: Cross multiply
    6,421.87x = 9,631.77 × 2,038.33
  4. Step 4: Simplify right side
    6,421.87x = 19,632,725.74
  5. Step 5: Solve for x
    x = 19,632,725.74/6,421.87
  6. Step 6: Final answer
    x = 3,057.17

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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.