Home / 5,421.36-8,129.27-2,497.13

Finding the Fourth Proportional to 5,421.36, 8,129.27 and 2,497.13

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Solution

The fourth proportional to 5,421.36, 8,129.27 and 2,497.13 is: 3,744.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.36 : 8,129.27 = 2,497.13 : x
  2. Step 2: Convert to fraction form
    5,421.36/8,129.27 = 2,497.13/x
  3. Step 3: Cross multiply
    5,421.36x = 8,129.27 × 2,497.13
  4. Step 4: Simplify right side
    5,421.36x = 20,299,790.86
  5. Step 5: Solve for x
    x = 20,299,790.86/5,421.36
  6. Step 6: Final answer
    x = 3,744.41

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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.