Home / 5,813.10-8,719.58-1,430.60

Finding the Fourth Proportional to 5,813.10, 8,719.58 and 1,430.60

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Solution

The fourth proportional to 5,813.10, 8,719.58 and 1,430.60 is: 2,145.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,813.10 : 8,719.58 = 1,430.60 : x
  2. Step 2: Convert to fraction form
    5,813.10/8,719.58 = 1,430.60/x
  3. Step 3: Cross multiply
    5,813.10x = 8,719.58 × 1,430.60
  4. Step 4: Simplify right side
    5,813.10x = 12,474,231.15
  5. Step 5: Solve for x
    x = 12,474,231.15/5,813.10
  6. Step 6: Final answer
    x = 2,145.88

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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.