Home / 5,430.69-8,147.28-2,310.81

Finding the Fourth Proportional to 5,430.69, 8,147.28 and 2,310.81

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Solution

The fourth proportional to 5,430.69, 8,147.28 and 2,310.81 is: 3,466.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.69 : 8,147.28 = 2,310.81 : x
  2. Step 2: Convert to fraction form
    5,430.69/8,147.28 = 2,310.81/x
  3. Step 3: Cross multiply
    5,430.69x = 8,147.28 × 2,310.81
  4. Step 4: Simplify right side
    5,430.69x = 18,826,816.10
  5. Step 5: Solve for x
    x = 18,826,816.10/5,430.69
  6. Step 6: Final answer
    x = 3,466.74

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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.