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Finding the Fourth Proportional to 7,905, 11,859.51 and 2,710.86

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Solution

The fourth proportional to 7,905, 11,859.51 and 2,710.86 is: 4,066.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905 : 11,859.51 = 2,710.86 : x
  2. Step 2: Convert to fraction form
    7,905/11,859.51 = 2,710.86/x
  3. Step 3: Cross multiply
    7,905x = 11,859.51 × 2,710.86
  4. Step 4: Simplify right side
    7,905x = 32,149,471.28
  5. Step 5: Solve for x
    x = 32,149,471.28/7,905
  6. Step 6: Final answer
    x = 4,066.98

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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.