Home / 3,114.45-4,665.60-2,130.30

Finding the Fourth Proportional to 3,114.45, 4,665.60 and 2,130.30

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Solution

The fourth proportional to 3,114.45, 4,665.60 and 2,130.30 is: 3,191.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.45 : 4,665.60 = 2,130.30 : x
  2. Step 2: Convert to fraction form
    3,114.45/4,665.60 = 2,130.30/x
  3. Step 3: Cross multiply
    3,114.45x = 4,665.60 × 2,130.30
  4. Step 4: Simplify right side
    3,114.45x = 9,939,127.68
  5. Step 5: Solve for x
    x = 9,939,127.68/3,114.45
  6. Step 6: Final answer
    x = 3,191.29

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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.