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Finding the Fourth Proportional to 1,094.27, 1,642.03 and 655.65

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Solution

The fourth proportional to 1,094.27, 1,642.03 and 655.65 is: 983.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,094.27 : 1,642.03 = 655.65 : x
  2. Step 2: Convert to fraction form
    1,094.27/1,642.03 = 655.65/x
  3. Step 3: Cross multiply
    1,094.27x = 1,642.03 × 655.65
  4. Step 4: Simplify right side
    1,094.27x = 1,076,595.33
  5. Step 5: Solve for x
    x = 1,076,595.33/1,094.27
  6. Step 6: Final answer
    x = 983.85

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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.