Home / 3,630.75-5,448.54-1,988.46

Finding the Fourth Proportional to 3,630.75, 5,448.54 and 1,988.46

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Solution

The fourth proportional to 3,630.75, 5,448.54 and 1,988.46 is: 2,984.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.75 : 5,448.54 = 1,988.46 : x
  2. Step 2: Convert to fraction form
    3,630.75/5,448.54 = 1,988.46/x
  3. Step 3: Cross multiply
    3,630.75x = 5,448.54 × 1,988.46
  4. Step 4: Simplify right side
    3,630.75x = 10,834,203.85
  5. Step 5: Solve for x
    x = 10,834,203.85/3,630.75
  6. Step 6: Final answer
    x = 2,984.01

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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.