Home / 3,018.90-4,531.06-1,539.11

Finding the Fourth Proportional to 3,018.90, 4,531.06 and 1,539.11

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Solution

The fourth proportional to 3,018.90, 4,531.06 and 1,539.11 is: 2,310.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.90 : 4,531.06 = 1,539.11 : x
  2. Step 2: Convert to fraction form
    3,018.90/4,531.06 = 1,539.11/x
  3. Step 3: Cross multiply
    3,018.90x = 4,531.06 × 1,539.11
  4. Step 4: Simplify right side
    3,018.90x = 6,973,799.76
  5. Step 5: Solve for x
    x = 6,973,799.76/3,018.90
  6. Step 6: Final answer
    x = 2,310.05

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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.