Home / 3,114.02-4,668.15-1,381.70

Finding the Fourth Proportional to 3,114.02, 4,668.15 and 1,381.70

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Solution

The fourth proportional to 3,114.02, 4,668.15 and 1,381.70 is: 2,071.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.02 : 4,668.15 = 1,381.70 : x
  2. Step 2: Convert to fraction form
    3,114.02/4,668.15 = 1,381.70/x
  3. Step 3: Cross multiply
    3,114.02x = 4,668.15 × 1,381.70
  4. Step 4: Simplify right side
    3,114.02x = 6,449,982.86
  5. Step 5: Solve for x
    x = 6,449,982.86/3,114.02
  6. Step 6: Final answer
    x = 2,071.27

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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.