Home / 5,814.13-8,721.11-1,431.63

Finding the Fourth Proportional to 5,814.13, 8,721.11 and 1,431.63

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Solution

The fourth proportional to 5,814.13, 8,721.11 and 1,431.63 is: 2,147.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,814.13 : 8,721.11 = 1,431.63 : x
  2. Step 2: Convert to fraction form
    5,814.13/8,721.11 = 1,431.63/x
  3. Step 3: Cross multiply
    5,814.13x = 8,721.11 × 1,431.63
  4. Step 4: Simplify right side
    5,814.13x = 12,485,402.71
  5. Step 5: Solve for x
    x = 12,485,402.71/5,814.13
  6. Step 6: Final answer
    x = 2,147.42

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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.