Home / 2,985.22-4,479.26-1,231.50

Finding the Fourth Proportional to 2,985.22, 4,479.26 and 1,231.50

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Solution

The fourth proportional to 2,985.22, 4,479.26 and 1,231.50 is: 1,847.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.22 : 4,479.26 = 1,231.50 : x
  2. Step 2: Convert to fraction form
    2,985.22/4,479.26 = 1,231.50/x
  3. Step 3: Cross multiply
    2,985.22x = 4,479.26 × 1,231.50
  4. Step 4: Simplify right side
    2,985.22x = 5,516,208.69
  5. Step 5: Solve for x
    x = 5,516,208.69/2,985.22
  6. Step 6: Final answer
    x = 1,847.84

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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.