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Finding the Fourth Proportional to 2,580.77, 3,871.08 and 632.99

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Solution

The fourth proportional to 2,580.77, 3,871.08 and 632.99 is: 949.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.77 : 3,871.08 = 632.99 : x
  2. Step 2: Convert to fraction form
    2,580.77/3,871.08 = 632.99/x
  3. Step 3: Cross multiply
    2,580.77x = 3,871.08 × 632.99
  4. Step 4: Simplify right side
    2,580.77x = 2,450,335.57
  5. Step 5: Solve for x
    x = 2,450,335.57/2,580.77
  6. Step 6: Final answer
    x = 949.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.