Home / 6,400.84-8,832.78-3,606.28

Finding the Fourth Proportional to 6,400.84, 8,832.78 and 3,606.28

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Solution

The fourth proportional to 6,400.84, 8,832.78 and 3,606.28 is: 4,976.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,400.84 : 8,832.78 = 3,606.28 : x
  2. Step 2: Convert to fraction form
    6,400.84/8,832.78 = 3,606.28/x
  3. Step 3: Cross multiply
    6,400.84x = 8,832.78 × 3,606.28
  4. Step 4: Simplify right side
    6,400.84x = 31,853,477.86
  5. Step 5: Solve for x
    x = 31,853,477.86/6,400.84
  6. Step 6: Final answer
    x = 4,976.45

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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.