Home / 2,979.90-4,110.93-1,800.27

Finding the Fourth Proportional to 2,979.90, 4,110.93 and 1,800.27

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Solution

The fourth proportional to 2,979.90, 4,110.93 and 1,800.27 is: 2,483.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.90 : 4,110.93 = 1,800.27 : x
  2. Step 2: Convert to fraction form
    2,979.90/4,110.93 = 1,800.27/x
  3. Step 3: Cross multiply
    2,979.90x = 4,110.93 × 1,800.27
  4. Step 4: Simplify right side
    2,979.90x = 7,400,783.95
  5. Step 5: Solve for x
    x = 7,400,783.95/2,979.90
  6. Step 6: Final answer
    x = 2,483.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.