Home / 2,802.28-3,867.16-1,543.36

Finding the Fourth Proportional to 2,802.28, 3,867.16 and 1,543.36

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Solution

The fourth proportional to 2,802.28, 3,867.16 and 1,543.36 is: 2,129.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.28 : 3,867.16 = 1,543.36 : x
  2. Step 2: Convert to fraction form
    2,802.28/3,867.16 = 1,543.36/x
  3. Step 3: Cross multiply
    2,802.28x = 3,867.16 × 1,543.36
  4. Step 4: Simplify right side
    2,802.28x = 5,968,420.06
  5. Step 5: Solve for x
    x = 5,968,420.06/2,802.28
  6. Step 6: Final answer
    x = 2,129.84

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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.