Home / 4,272.24-6,409.05-1,639.64

Finding the Fourth Proportional to 4,272.24, 6,409.05 and 1,639.64

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Solution

The fourth proportional to 4,272.24, 6,409.05 and 1,639.64 is: 2,459.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.24 : 6,409.05 = 1,639.64 : x
  2. Step 2: Convert to fraction form
    4,272.24/6,409.05 = 1,639.64/x
  3. Step 3: Cross multiply
    4,272.24x = 6,409.05 × 1,639.64
  4. Step 4: Simplify right side
    4,272.24x = 10,508,549.23
  5. Step 5: Solve for x
    x = 10,508,549.23/4,272.24
  6. Step 6: Final answer
    x = 2,459.73

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1.5x scale

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.