Home / 5,421.26-8,130.87-1,723.53

Finding the Fourth Proportional to 5,421.26, 8,130.87 and 1,723.53

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Solution

The fourth proportional to 5,421.26, 8,130.87 and 1,723.53 is: 2,584.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.26 : 8,130.87 = 1,723.53 : x
  2. Step 2: Convert to fraction form
    5,421.26/8,130.87 = 1,723.53/x
  3. Step 3: Cross multiply
    5,421.26x = 8,130.87 × 1,723.53
  4. Step 4: Simplify right side
    5,421.26x = 14,013,798.37
  5. Step 5: Solve for x
    x = 14,013,798.37/5,421.26
  6. Step 6: Final answer
    x = 2,584.97

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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.