Home / 1,879.65-2,593.45-1,215.70

Finding the Fourth Proportional to 1,879.65, 2,593.45 and 1,215.70

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Solution

The fourth proportional to 1,879.65, 2,593.45 and 1,215.70 is: 1,677.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879.65 : 2,593.45 = 1,215.70 : x
  2. Step 2: Convert to fraction form
    1,879.65/2,593.45 = 1,215.70/x
  3. Step 3: Cross multiply
    1,879.65x = 2,593.45 × 1,215.70
  4. Step 4: Simplify right side
    1,879.65x = 3,152,866.79
  5. Step 5: Solve for x
    x = 3,152,866.79/1,879.65
  6. Step 6: Final answer
    x = 1,677.37

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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.