Home / 3,140.86-4,334.28-1,814.44

Finding the Fourth Proportional to 3,140.86, 4,334.28 and 1,814.44

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Solution

The fourth proportional to 3,140.86, 4,334.28 and 1,814.44 is: 2,503.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.86 : 4,334.28 = 1,814.44 : x
  2. Step 2: Convert to fraction form
    3,140.86/4,334.28 = 1,814.44/x
  3. Step 3: Cross multiply
    3,140.86x = 4,334.28 × 1,814.44
  4. Step 4: Simplify right side
    3,140.86x = 7,864,291.00
  5. Step 5: Solve for x
    x = 7,864,291.00/3,140.86
  6. Step 6: Final answer
    x = 2,503.87

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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.