Home / 1,176.23-1,623.20-637.87

Finding the Fourth Proportional to 1,176.23, 1,623.20 and 637.87

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Solution

The fourth proportional to 1,176.23, 1,623.20 and 637.87 is: 880.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.23 : 1,623.20 = 637.87 : x
  2. Step 2: Convert to fraction form
    1,176.23/1,623.20 = 637.87/x
  3. Step 3: Cross multiply
    1,176.23x = 1,623.20 × 637.87
  4. Step 4: Simplify right side
    1,176.23x = 1,035,387.39
  5. Step 5: Solve for x
    x = 1,035,387.39/1,176.23
  6. Step 6: Final answer
    x = 880.26

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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.