Home / 5,459.20-8,189.20-1,563.64

Finding the Fourth Proportional to 5,459.20, 8,189.20 and 1,563.64

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Solution

The fourth proportional to 5,459.20, 8,189.20 and 1,563.64 is: 2,345.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,459.20 : 8,189.20 = 1,563.64 : x
  2. Step 2: Convert to fraction form
    5,459.20/8,189.20 = 1,563.64/x
  3. Step 3: Cross multiply
    5,459.20x = 8,189.20 × 1,563.64
  4. Step 4: Simplify right side
    5,459.20x = 12,804,960.69
  5. Step 5: Solve for x
    x = 12,804,960.69/5,459.20
  6. Step 6: Final answer
    x = 2,345.57

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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.