Home / 4,815.12-6,650.35-3,240.48

Finding the Fourth Proportional to 4,815.12, 6,650.35 and 3,240.48

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Solution

The fourth proportional to 4,815.12, 6,650.35 and 3,240.48 is: 4,475.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.12 : 6,650.35 = 3,240.48 : x
  2. Step 2: Convert to fraction form
    4,815.12/6,650.35 = 3,240.48/x
  3. Step 3: Cross multiply
    4,815.12x = 6,650.35 × 3,240.48
  4. Step 4: Simplify right side
    4,815.12x = 21,550,326.17
  5. Step 5: Solve for x
    x = 21,550,326.17/4,815.12
  6. Step 6: Final answer
    x = 4,475.55

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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.