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Finding the Fourth Proportional to 1,495.86, 2,239.53 and 976.44

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Solution

The fourth proportional to 1,495.86, 2,239.53 and 976.44 is: 1,461.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.86 : 2,239.53 = 976.44 : x
  2. Step 2: Convert to fraction form
    1,495.86/2,239.53 = 976.44/x
  3. Step 3: Cross multiply
    1,495.86x = 2,239.53 × 976.44
  4. Step 4: Simplify right side
    1,495.86x = 2,186,766.67
  5. Step 5: Solve for x
    x = 2,186,766.67/1,495.86
  6. Step 6: Final answer
    x = 1,461.88

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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.