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Finding the Fourth Proportional to 3,342.86, 5,014.34 and 877.92

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Solution

The fourth proportional to 3,342.86, 5,014.34 and 877.92 is: 1,316.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,342.86 : 5,014.34 = 877.92 : x
  2. Step 2: Convert to fraction form
    3,342.86/5,014.34 = 877.92/x
  3. Step 3: Cross multiply
    3,342.86x = 5,014.34 × 877.92
  4. Step 4: Simplify right side
    3,342.86x = 4,402,184.98
  5. Step 5: Solve for x
    x = 4,402,184.98/3,342.86
  6. Step 6: Final answer
    x = 1,316.89

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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.