Home / 4,977.28-6,864.32-3,208.32

Finding the Fourth Proportional to 4,977.28, 6,864.32 and 3,208.32

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Solution

The fourth proportional to 4,977.28, 6,864.32 and 3,208.32 is: 4,424.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.28 : 6,864.32 = 3,208.32 : x
  2. Step 2: Convert to fraction form
    4,977.28/6,864.32 = 3,208.32/x
  3. Step 3: Cross multiply
    4,977.28x = 6,864.32 × 3,208.32
  4. Step 4: Simplify right side
    4,977.28x = 22,022,935.14
  5. Step 5: Solve for x
    x = 22,022,935.14/4,977.28
  6. Step 6: Final answer
    x = 4,424.69

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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.