Home / 5,639.64-7,783.14-3,250.35

Finding the Fourth Proportional to 5,639.64, 7,783.14 and 3,250.35

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Solution

The fourth proportional to 5,639.64, 7,783.14 and 3,250.35 is: 4,485.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.64 : 7,783.14 = 3,250.35 : x
  2. Step 2: Convert to fraction form
    5,639.64/7,783.14 = 3,250.35/x
  3. Step 3: Cross multiply
    5,639.64x = 7,783.14 × 3,250.35
  4. Step 4: Simplify right side
    5,639.64x = 25,297,929.10
  5. Step 5: Solve for x
    x = 25,297,929.10/5,639.64
  6. Step 6: Final answer
    x = 4,485.73

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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.