Home / 5,346.72-8,012.88-3,155.04

Finding the Fourth Proportional to 5,346.72, 8,012.88 and 3,155.04

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Solution

The fourth proportional to 5,346.72, 8,012.88 and 3,155.04 is: 4,728.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,346.72 : 8,012.88 = 3,155.04 : x
  2. Step 2: Convert to fraction form
    5,346.72/8,012.88 = 3,155.04/x
  3. Step 3: Cross multiply
    5,346.72x = 8,012.88 × 3,155.04
  4. Step 4: Simplify right side
    5,346.72x = 25,280,956.92
  5. Step 5: Solve for x
    x = 25,280,956.92/5,346.72
  6. Step 6: Final answer
    x = 4,728.31

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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.