Home / 4,429.32-6,639.72-1,655.22

Finding the Fourth Proportional to 4,429.32, 6,639.72 and 1,655.22

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Solution

The fourth proportional to 4,429.32, 6,639.72 and 1,655.22 is: 2,481.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,429.32 : 6,639.72 = 1,655.22 : x
  2. Step 2: Convert to fraction form
    4,429.32/6,639.72 = 1,655.22/x
  3. Step 3: Cross multiply
    4,429.32x = 6,639.72 × 1,655.22
  4. Step 4: Simplify right side
    4,429.32x = 10,990,197.34
  5. Step 5: Solve for x
    x = 10,990,197.34/4,429.32
  6. Step 6: Final answer
    x = 2,481.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.