Home / 2,159.68-2,976.96-1,897.24

Finding the Fourth Proportional to 2,159.68, 2,976.96 and 1,897.24

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Solution

The fourth proportional to 2,159.68, 2,976.96 and 1,897.24 is: 2,615.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159.68 : 2,976.96 = 1,897.24 : x
  2. Step 2: Convert to fraction form
    2,159.68/2,976.96 = 1,897.24/x
  3. Step 3: Cross multiply
    2,159.68x = 2,976.96 × 1,897.24
  4. Step 4: Simplify right side
    2,159.68x = 5,648,007.59
  5. Step 5: Solve for x
    x = 5,648,007.59/2,159.68
  6. Step 6: Final answer
    x = 2,615.21

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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.