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Finding the Fourth Proportional to 4,478.14, 6,719.64 and 1,881.01

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Solution

The fourth proportional to 4,478.14, 6,719.64 and 1,881.01 is: 2,822.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.14 : 6,719.64 = 1,881.01 : x
  2. Step 2: Convert to fraction form
    4,478.14/6,719.64 = 1,881.01/x
  3. Step 3: Cross multiply
    4,478.14x = 6,719.64 × 1,881.01
  4. Step 4: Simplify right side
    4,478.14x = 12,639,710.04
  5. Step 5: Solve for x
    x = 12,639,710.04/4,478.14
  6. Step 6: Final answer
    x = 2,822.54

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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.