Home / 5,707.26-7,875.81-3,189.36

Finding the Fourth Proportional to 5,707.26, 7,875.81 and 3,189.36

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Solution

The fourth proportional to 5,707.26, 7,875.81 and 3,189.36 is: 4,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,707.26 : 7,875.81 = 3,189.36 : x
  2. Step 2: Convert to fraction form
    5,707.26/7,875.81 = 3,189.36/x
  3. Step 3: Cross multiply
    5,707.26x = 7,875.81 × 3,189.36
  4. Step 4: Simplify right side
    5,707.26x = 25,118,793.38
  5. Step 5: Solve for x
    x = 25,118,793.38/5,707.26
  6. Step 6: Final answer
    x = 4,401.20

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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.