Home / 4,631.00-6,390.78-2,641.50

Finding the Fourth Proportional to 4,631.00, 6,390.78 and 2,641.50

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Solution

The fourth proportional to 4,631.00, 6,390.78 and 2,641.50 is: 3,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,631.00 : 6,390.78 = 2,641.50 : x
  2. Step 2: Convert to fraction form
    4,631.00/6,390.78 = 2,641.50/x
  3. Step 3: Cross multiply
    4,631.00x = 6,390.78 × 2,641.50
  4. Step 4: Simplify right side
    4,631.00x = 16,881,245.37
  5. Step 5: Solve for x
    x = 16,881,245.37/4,631.00
  6. Step 6: Final answer
    x = 3,645.27

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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.