Home / 5,214.64-7,814.12-2,091.56

Finding the Fourth Proportional to 5,214.64, 7,814.12 and 2,091.56

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Solution

The fourth proportional to 5,214.64, 7,814.12 and 2,091.56 is: 3,134.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.64 : 7,814.12 = 2,091.56 : x
  2. Step 2: Convert to fraction form
    5,214.64/7,814.12 = 2,091.56/x
  3. Step 3: Cross multiply
    5,214.64x = 7,814.12 × 2,091.56
  4. Step 4: Simplify right side
    5,214.64x = 16,343,700.83
  5. Step 5: Solve for x
    x = 16,343,700.83/5,214.64
  6. Step 6: Final answer
    x = 3,134.20

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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.