Home / 5,159.93-7,120.73-2,802.07

Finding the Fourth Proportional to 5,159.93, 7,120.73 and 2,802.07

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Solution

The fourth proportional to 5,159.93, 7,120.73 and 2,802.07 is: 3,866.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.93 : 7,120.73 = 2,802.07 : x
  2. Step 2: Convert to fraction form
    5,159.93/7,120.73 = 2,802.07/x
  3. Step 3: Cross multiply
    5,159.93x = 7,120.73 × 2,802.07
  4. Step 4: Simplify right side
    5,159.93x = 19,952,734.30
  5. Step 5: Solve for x
    x = 19,952,734.30/5,159.93
  6. Step 6: Final answer
    x = 3,866.87

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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.