Home / 5,707.28-7,875.09-3,189.31

Finding the Fourth Proportional to 5,707.28, 7,875.09 and 3,189.31

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Solution

The fourth proportional to 5,707.28, 7,875.09 and 3,189.31 is: 4,400.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,707.28 : 7,875.09 = 3,189.31 : x
  2. Step 2: Convert to fraction form
    5,707.28/7,875.09 = 3,189.31/x
  3. Step 3: Cross multiply
    5,707.28x = 7,875.09 × 3,189.31
  4. Step 4: Simplify right side
    5,707.28x = 25,116,083.60
  5. Step 5: Solve for x
    x = 25,116,083.60/5,707.28
  6. Step 6: Final answer
    x = 4,400.71

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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.