Home / 3,218.04-4,429.66-2,803.32

Finding the Fourth Proportional to 3,218.04, 4,429.66 and 2,803.32

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Solution

The fourth proportional to 3,218.04, 4,429.66 and 2,803.32 is: 3,858.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.04 : 4,429.66 = 2,803.32 : x
  2. Step 2: Convert to fraction form
    3,218.04/4,429.66 = 2,803.32/x
  3. Step 3: Cross multiply
    3,218.04x = 4,429.66 × 2,803.32
  4. Step 4: Simplify right side
    3,218.04x = 12,417,754.47
  5. Step 5: Solve for x
    x = 12,417,754.47/3,218.04
  6. Step 6: Final answer
    x = 3,858.79

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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.