Home / 1,529.69-2,110.47-1,057.43

Finding the Fourth Proportional to 1,529.69, 2,110.47 and 1,057.43

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Solution

The fourth proportional to 1,529.69, 2,110.47 and 1,057.43 is: 1,458.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.69 : 2,110.47 = 1,057.43 : x
  2. Step 2: Convert to fraction form
    1,529.69/2,110.47 = 1,057.43/x
  3. Step 3: Cross multiply
    1,529.69x = 2,110.47 × 1,057.43
  4. Step 4: Simplify right side
    1,529.69x = 2,231,663.74
  5. Step 5: Solve for x
    x = 2,231,663.74/1,529.69
  6. Step 6: Final answer
    x = 1,458.90

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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.