Home / 2,802.31-3,867.08-1,543.35

Finding the Fourth Proportional to 2,802.31, 3,867.08 and 1,543.35

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Solution

The fourth proportional to 2,802.31, 3,867.08 and 1,543.35 is: 2,129.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.31 : 3,867.08 = 1,543.35 : x
  2. Step 2: Convert to fraction form
    2,802.31/3,867.08 = 1,543.35/x
  3. Step 3: Cross multiply
    2,802.31x = 3,867.08 × 1,543.35
  4. Step 4: Simplify right side
    2,802.31x = 5,968,257.92
  5. Step 5: Solve for x
    x = 5,968,257.92/2,802.31
  6. Step 6: Final answer
    x = 2,129.76

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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.