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Finding the Fourth Proportional to 2,673.81, 4,011.93 and 1,439.91

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Solution

The fourth proportional to 2,673.81, 4,011.93 and 1,439.91 is: 2,160.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,673.81 : 4,011.93 = 1,439.91 : x
  2. Step 2: Convert to fraction form
    2,673.81/4,011.93 = 1,439.91/x
  3. Step 3: Cross multiply
    2,673.81x = 4,011.93 × 1,439.91
  4. Step 4: Simplify right side
    2,673.81x = 5,776,818.13
  5. Step 5: Solve for x
    x = 5,776,818.13/2,673.81
  6. Step 6: Final answer
    x = 2,160.52

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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.