Home / 5,211.12-7,814.72-1,700.30

Finding the Fourth Proportional to 5,211.12, 7,814.72 and 1,700.30

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Solution

The fourth proportional to 5,211.12, 7,814.72 and 1,700.30 is: 2,549.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.12 : 7,814.72 = 1,700.30 : x
  2. Step 2: Convert to fraction form
    5,211.12/7,814.72 = 1,700.30/x
  3. Step 3: Cross multiply
    5,211.12x = 7,814.72 × 1,700.30
  4. Step 4: Simplify right side
    5,211.12x = 13,287,392.20
  5. Step 5: Solve for x
    x = 13,287,392.20/5,211.12
  6. Step 6: Final answer
    x = 2,549.81

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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.