Home / 3,639.71-5,459.58-1,448.45

Finding the Fourth Proportional to 3,639.71, 5,459.58 and 1,448.45

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Solution

The fourth proportional to 3,639.71, 5,459.58 and 1,448.45 is: 2,172.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.71 : 5,459.58 = 1,448.45 : x
  2. Step 2: Convert to fraction form
    3,639.71/5,459.58 = 1,448.45/x
  3. Step 3: Cross multiply
    3,639.71x = 5,459.58 × 1,448.45
  4. Step 4: Simplify right side
    3,639.71x = 7,907,901.35
  5. Step 5: Solve for x
    x = 7,907,901.35/3,639.71
  6. Step 6: Final answer
    x = 2,172.68

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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.