Home / 2,945.18-4,059.78-2,199.18

Finding the Fourth Proportional to 2,945.18, 4,059.78 and 2,199.18

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Solution

The fourth proportional to 2,945.18, 4,059.78 and 2,199.18 is: 3,031.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.18 : 4,059.78 = 2,199.18 : x
  2. Step 2: Convert to fraction form
    2,945.18/4,059.78 = 2,199.18/x
  3. Step 3: Cross multiply
    2,945.18x = 4,059.78 × 2,199.18
  4. Step 4: Simplify right side
    2,945.18x = 8,928,186.98
  5. Step 5: Solve for x
    x = 8,928,186.98/2,945.18
  6. Step 6: Final answer
    x = 3,031.46

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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.