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Finding the Fourth Proportional to 1,932.65, 2,666.04 and 1,490.39

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Solution

The fourth proportional to 1,932.65, 2,666.04 and 1,490.39 is: 2,055.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932.65 : 2,666.04 = 1,490.39 : x
  2. Step 2: Convert to fraction form
    1,932.65/2,666.04 = 1,490.39/x
  3. Step 3: Cross multiply
    1,932.65x = 2,666.04 × 1,490.39
  4. Step 4: Simplify right side
    1,932.65x = 3,973,439.36
  5. Step 5: Solve for x
    x = 3,973,439.36/1,932.65
  6. Step 6: Final answer
    x = 2,055.95

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Why These Related Problems?

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