Home / 5,812.79-8,021.63-3,160.20

Finding the Fourth Proportional to 5,812.79, 8,021.63 and 3,160.20

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Solution

The fourth proportional to 5,812.79, 8,021.63 and 3,160.20 is: 4,361.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.79 : 8,021.63 = 3,160.20 : x
  2. Step 2: Convert to fraction form
    5,812.79/8,021.63 = 3,160.20/x
  3. Step 3: Cross multiply
    5,812.79x = 8,021.63 × 3,160.20
  4. Step 4: Simplify right side
    5,812.79x = 25,349,939.33
  5. Step 5: Solve for x
    x = 25,349,939.33/5,812.79
  6. Step 6: Final answer
    x = 4,361.07

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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.