Home / 3,630.40-5,449.20-1,783.60

Finding the Fourth Proportional to 3,630.40, 5,449.20 and 1,783.60

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Solution

The fourth proportional to 3,630.40, 5,449.20 and 1,783.60 is: 2,677.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.40 : 5,449.20 = 1,783.60 : x
  2. Step 2: Convert to fraction form
    3,630.40/5,449.20 = 1,783.60/x
  3. Step 3: Cross multiply
    3,630.40x = 5,449.20 × 1,783.60
  4. Step 4: Simplify right side
    3,630.40x = 9,719,193.12
  5. Step 5: Solve for x
    x = 9,719,193.12/3,630.40
  6. Step 6: Final answer
    x = 2,677.17

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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.