Home / 6,403.96-8,837.16-3,571.28

Finding the Fourth Proportional to 6,403.96, 8,837.16 and 3,571.28

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Solution

The fourth proportional to 6,403.96, 8,837.16 and 3,571.28 is: 4,928.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,403.96 : 8,837.16 = 3,571.28 : x
  2. Step 2: Convert to fraction form
    6,403.96/8,837.16 = 3,571.28/x
  3. Step 3: Cross multiply
    6,403.96x = 8,837.16 × 3,571.28
  4. Step 4: Simplify right side
    6,403.96x = 31,559,972.76
  5. Step 5: Solve for x
    x = 31,559,972.76/6,403.96
  6. Step 6: Final answer
    x = 4,928.20

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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.