Home / 1,176.43-1,622.80-1,057.51

Finding the Fourth Proportional to 1,176.43, 1,622.80 and 1,057.51

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Solution

The fourth proportional to 1,176.43, 1,622.80 and 1,057.51 is: 1,458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.43 : 1,622.80 = 1,057.51 : x
  2. Step 2: Convert to fraction form
    1,176.43/1,622.80 = 1,057.51/x
  3. Step 3: Cross multiply
    1,176.43x = 1,622.80 × 1,057.51
  4. Step 4: Simplify right side
    1,176.43x = 1,716,119.11
  5. Step 5: Solve for x
    x = 1,716,119.11/1,176.43
  6. Step 6: Final answer
    x = 1,458.76

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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.