Home / 4,071.07-6,109.35-1,989.33

Finding the Fourth Proportional to 4,071.07, 6,109.35 and 1,989.33

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Solution

The fourth proportional to 4,071.07, 6,109.35 and 1,989.33 is: 2,985.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,071.07 : 6,109.35 = 1,989.33 : x
  2. Step 2: Convert to fraction form
    4,071.07/6,109.35 = 1,989.33/x
  3. Step 3: Cross multiply
    4,071.07x = 6,109.35 × 1,989.33
  4. Step 4: Simplify right side
    4,071.07x = 12,153,513.24
  5. Step 5: Solve for x
    x = 12,153,513.24/4,071.07
  6. Step 6: Final answer
    x = 2,985.34

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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.