Home / 6,345.90-8,756.55-3,512.88

Finding the Fourth Proportional to 6,345.90, 8,756.55 and 3,512.88

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Solution

The fourth proportional to 6,345.90, 8,756.55 and 3,512.88 is: 4,847.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,345.90 : 8,756.55 = 3,512.88 : x
  2. Step 2: Convert to fraction form
    6,345.90/8,756.55 = 3,512.88/x
  3. Step 3: Cross multiply
    6,345.90x = 8,756.55 × 3,512.88
  4. Step 4: Simplify right side
    6,345.90x = 30,760,709.36
  5. Step 5: Solve for x
    x = 30,760,709.36/6,345.90
  6. Step 6: Final answer
    x = 4,847.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.