Home / 5,845.40-8,768.10-5,213.60

Finding the Fourth Proportional to 5,845.40, 8,768.10 and 5,213.60

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Solution

The fourth proportional to 5,845.40, 8,768.10 and 5,213.60 is: 7,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,845.40 : 8,768.10 = 5,213.60 : x
  2. Step 2: Convert to fraction form
    5,845.40/8,768.10 = 5,213.60/x
  3. Step 3: Cross multiply
    5,845.40x = 8,768.10 × 5,213.60
  4. Step 4: Simplify right side
    5,845.40x = 45,713,366.16
  5. Step 5: Solve for x
    x = 45,713,366.16/5,845.40
  6. Step 6: Final answer
    x = 7,820.40

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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.