Home / 5,459.60-8,189.40-4,811.60

Finding the Fourth Proportional to 5,459.60, 8,189.40 and 4,811.60

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Solution

The fourth proportional to 5,459.60, 8,189.40 and 4,811.60 is: 7,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,459.60 : 8,189.40 = 4,811.60 : x
  2. Step 2: Convert to fraction form
    5,459.60/8,189.40 = 4,811.60/x
  3. Step 3: Cross multiply
    5,459.60x = 8,189.40 × 4,811.60
  4. Step 4: Simplify right side
    5,459.60x = 39,404,117.04
  5. Step 5: Solve for x
    x = 39,404,117.04/5,459.60
  6. Step 6: Final answer
    x = 7,217.40

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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.