Home / 5,728.43-7,905.56-3,210.41

Finding the Fourth Proportional to 5,728.43, 7,905.56 and 3,210.41

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Solution

The fourth proportional to 5,728.43, 7,905.56 and 3,210.41 is: 4,430.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.43 : 7,905.56 = 3,210.41 : x
  2. Step 2: Convert to fraction form
    5,728.43/7,905.56 = 3,210.41/x
  3. Step 3: Cross multiply
    5,728.43x = 7,905.56 × 3,210.41
  4. Step 4: Simplify right side
    5,728.43x = 25,380,126.28
  5. Step 5: Solve for x
    x = 25,380,126.28/5,728.43
  6. Step 6: Final answer
    x = 4,430.56

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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.