Home / 3,630.32-5,444.44-1,987.60

Finding the Fourth Proportional to 3,630.32, 5,444.44 and 1,987.60

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Solution

The fourth proportional to 3,630.32, 5,444.44 and 1,987.60 is: 2,980.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.32 : 5,444.44 = 1,987.60 : x
  2. Step 2: Convert to fraction form
    3,630.32/5,444.44 = 1,987.60/x
  3. Step 3: Cross multiply
    3,630.32x = 5,444.44 × 1,987.60
  4. Step 4: Simplify right side
    3,630.32x = 10,821,368.94
  5. Step 5: Solve for x
    x = 10,821,368.94/3,630.32
  6. Step 6: Final answer
    x = 2,980.83

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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.