Home / 4,631.54-6,389.91-2,640.65

Finding the Fourth Proportional to 4,631.54, 6,389.91 and 2,640.65

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Solution

The fourth proportional to 4,631.54, 6,389.91 and 2,640.65 is: 3,643.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,631.54 : 6,389.91 = 2,640.65 : x
  2. Step 2: Convert to fraction form
    4,631.54/6,389.91 = 2,640.65/x
  3. Step 3: Cross multiply
    4,631.54x = 6,389.91 × 2,640.65
  4. Step 4: Simplify right side
    4,631.54x = 16,873,483.89
  5. Step 5: Solve for x
    x = 16,873,483.89/4,631.54
  6. Step 6: Final answer
    x = 3,643.17

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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.