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Finding the Fourth Proportional to 1,677.55, 2,516.43 and 507.49

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Solution

The fourth proportional to 1,677.55, 2,516.43 and 507.49 is: 761.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.55 : 2,516.43 = 507.49 : x
  2. Step 2: Convert to fraction form
    1,677.55/2,516.43 = 507.49/x
  3. Step 3: Cross multiply
    1,677.55x = 2,516.43 × 507.49
  4. Step 4: Simplify right side
    1,677.55x = 1,277,063.06
  5. Step 5: Solve for x
    x = 1,277,063.06/1,677.55
  6. Step 6: Final answer
    x = 761.27

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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.