Home / 1,416.07-1,956.05-1,180.79

Finding the Fourth Proportional to 1,416.07, 1,956.05 and 1,180.79

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Solution

The fourth proportional to 1,416.07, 1,956.05 and 1,180.79 is: 1,631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.07 : 1,956.05 = 1,180.79 : x
  2. Step 2: Convert to fraction form
    1,416.07/1,956.05 = 1,180.79/x
  3. Step 3: Cross multiply
    1,416.07x = 1,956.05 × 1,180.79
  4. Step 4: Simplify right side
    1,416.07x = 2,309,680.36
  5. Step 5: Solve for x
    x = 2,309,680.36/1,416.07
  6. Step 6: Final answer
    x = 1,631.05

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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.