Home / 4,631.45-6,390.80-2,641.88

Finding the Fourth Proportional to 4,631.45, 6,390.80 and 2,641.88

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Solution

The fourth proportional to 4,631.45, 6,390.80 and 2,641.88 is: 3,645.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,631.45 : 6,390.80 = 2,641.88 : x
  2. Step 2: Convert to fraction form
    4,631.45/6,390.80 = 2,641.88/x
  3. Step 3: Cross multiply
    4,631.45x = 6,390.80 × 2,641.88
  4. Step 4: Simplify right side
    4,631.45x = 16,883,739.38
  5. Step 5: Solve for x
    x = 16,883,739.38/4,631.45
  6. Step 6: Final answer
    x = 3,645.46

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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.