Home / 3,114.50-4,295.03-2,405.21

Finding the Fourth Proportional to 3,114.50, 4,295.03 and 2,405.21

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Solution

The fourth proportional to 3,114.50, 4,295.03 and 2,405.21 is: 3,316.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.50 : 4,295.03 = 2,405.21 : x
  2. Step 2: Convert to fraction form
    3,114.50/4,295.03 = 2,405.21/x
  3. Step 3: Cross multiply
    3,114.50x = 4,295.03 × 2,405.21
  4. Step 4: Simplify right side
    3,114.50x = 10,330,415.61
  5. Step 5: Solve for x
    x = 10,330,415.61/3,114.50
  6. Step 6: Final answer
    x = 3,316.88

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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.