Home / 1,934.70-2,666.96-1,188.08

Finding the Fourth Proportional to 1,934.70, 2,666.96 and 1,188.08

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Solution

The fourth proportional to 1,934.70, 2,666.96 and 1,188.08 is: 1,637.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.70 : 2,666.96 = 1,188.08 : x
  2. Step 2: Convert to fraction form
    1,934.70/2,666.96 = 1,188.08/x
  3. Step 3: Cross multiply
    1,934.70x = 2,666.96 × 1,188.08
  4. Step 4: Simplify right side
    1,934.70x = 3,168,542.56
  5. Step 5: Solve for x
    x = 3,168,542.56/1,934.70
  6. Step 6: Final answer
    x = 1,637.74

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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.