Home / 5,421.24-8,134.74-2,343

Finding the Fourth Proportional to 5,421.24, 8,134.74 and 2,343

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Solution

The fourth proportional to 5,421.24, 8,134.74 and 2,343 is: 3,515.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.24 : 8,134.74 = 2,343 : x
  2. Step 2: Convert to fraction form
    5,421.24/8,134.74 = 2,343/x
  3. Step 3: Cross multiply
    5,421.24x = 8,134.74 × 2,343
  4. Step 4: Simplify right side
    5,421.24x = 19,059,695.82
  5. Step 5: Solve for x
    x = 19,059,695.82/5,421.24
  6. Step 6: Final answer
    x = 3,515.74

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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.