Home / 3,875.99-5,812.96-1,684.20

Finding the Fourth Proportional to 3,875.99, 5,812.96 and 1,684.20

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Solution

The fourth proportional to 3,875.99, 5,812.96 and 1,684.20 is: 2,525.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.99 : 5,812.96 = 1,684.20 : x
  2. Step 2: Convert to fraction form
    3,875.99/5,812.96 = 1,684.20/x
  3. Step 3: Cross multiply
    3,875.99x = 5,812.96 × 1,684.20
  4. Step 4: Simplify right side
    3,875.99x = 9,790,193.34
  5. Step 5: Solve for x
    x = 9,790,193.34/3,875.99
  6. Step 6: Final answer
    x = 2,525.86

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1.5x scale

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.