Home / 5,420.29-8,129.01-2,298.68

Finding the Fourth Proportional to 5,420.29, 8,129.01 and 2,298.68

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Solution

The fourth proportional to 5,420.29, 8,129.01 and 2,298.68 is: 3,447.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.29 : 8,129.01 = 2,298.68 : x
  2. Step 2: Convert to fraction form
    5,420.29/8,129.01 = 2,298.68/x
  3. Step 3: Cross multiply
    5,420.29x = 8,129.01 × 2,298.68
  4. Step 4: Simplify right side
    5,420.29x = 18,685,978.24
  5. Step 5: Solve for x
    x = 18,685,978.24/5,420.29
  6. Step 6: Final answer
    x = 3,447.41

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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.