Home / 3,539.28-5,310-1,809.12

Finding the Fourth Proportional to 3,539.28, 5,310 and 1,809.12

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Solution

The fourth proportional to 3,539.28, 5,310 and 1,809.12 is: 2,714.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.28 : 5,310 = 1,809.12 : x
  2. Step 2: Convert to fraction form
    3,539.28/5,310 = 1,809.12/x
  3. Step 3: Cross multiply
    3,539.28x = 5,310 × 1,809.12
  4. Step 4: Simplify right side
    3,539.28x = 9,606,427.20
  5. Step 5: Solve for x
    x = 9,606,427.20/3,539.28
  6. Step 6: Final answer
    x = 2,714.23

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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.