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Finding the Fourth Proportional to 1,184.93, 1,776.48 and 637.42

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Solution

The fourth proportional to 1,184.93, 1,776.48 and 637.42 is: 955.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.93 : 1,776.48 = 637.42 : x
  2. Step 2: Convert to fraction form
    1,184.93/1,776.48 = 637.42/x
  3. Step 3: Cross multiply
    1,184.93x = 1,776.48 × 637.42
  4. Step 4: Simplify right side
    1,184.93x = 1,132,363.97
  5. Step 5: Solve for x
    x = 1,132,363.97/1,184.93
  6. Step 6: Final answer
    x = 955.64

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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.