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Finding the Fourth Proportional to 7,877.71, 10,871.47 and 4,341.15

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Solution

The fourth proportional to 7,877.71, 10,871.47 and 4,341.15 is: 5,990.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.71 : 10,871.47 = 4,341.15 : x
  2. Step 2: Convert to fraction form
    7,877.71/10,871.47 = 4,341.15/x
  3. Step 3: Cross multiply
    7,877.71x = 10,871.47 × 4,341.15
  4. Step 4: Simplify right side
    7,877.71x = 47,194,692.84
  5. Step 5: Solve for x
    x = 47,194,692.84/7,877.71
  6. Step 6: Final answer
    x = 5,990.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.