Home / 2,814.40-4,218.08-1,941.76

Finding the Fourth Proportional to 2,814.40, 4,218.08 and 1,941.76

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Solution

The fourth proportional to 2,814.40, 4,218.08 and 1,941.76 is: 2,910.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.40 : 4,218.08 = 1,941.76 : x
  2. Step 2: Convert to fraction form
    2,814.40/4,218.08 = 1,941.76/x
  3. Step 3: Cross multiply
    2,814.40x = 4,218.08 × 1,941.76
  4. Step 4: Simplify right side
    2,814.40x = 8,190,499.02
  5. Step 5: Solve for x
    x = 8,190,499.02/2,814.40
  6. Step 6: Final answer
    x = 2,910.21

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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.