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Finding the Fourth Proportional to 2,511.85, 3,767.75 and 637.74

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Solution

The fourth proportional to 2,511.85, 3,767.75 and 637.74 is: 956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.85 : 3,767.75 = 637.74 : x
  2. Step 2: Convert to fraction form
    2,511.85/3,767.75 = 637.74/x
  3. Step 3: Cross multiply
    2,511.85x = 3,767.75 × 637.74
  4. Step 4: Simplify right side
    2,511.85x = 2,402,827.57
  5. Step 5: Solve for x
    x = 2,402,827.57/2,511.85
  6. Step 6: Final answer
    x = 956.60

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1.5x scale

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.