Home / 7,028.64-10,543.08-2,645.28

Finding the Fourth Proportional to 7,028.64, 10,543.08 and 2,645.28

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Solution

The fourth proportional to 7,028.64, 10,543.08 and 2,645.28 is: 3,967.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,028.64 : 10,543.08 = 2,645.28 : x
  2. Step 2: Convert to fraction form
    7,028.64/10,543.08 = 2,645.28/x
  3. Step 3: Cross multiply
    7,028.64x = 10,543.08 × 2,645.28
  4. Step 4: Simplify right side
    7,028.64x = 27,889,398.66
  5. Step 5: Solve for x
    x = 27,889,398.66/7,028.64
  6. Step 6: Final answer
    x = 3,967.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.