Home / 3,018.40-4,531.20-1,703.20

Finding the Fourth Proportional to 3,018.40, 4,531.20 and 1,703.20

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Solution

The fourth proportional to 3,018.40, 4,531.20 and 1,703.20 is: 2,556.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.40 : 4,531.20 = 1,703.20 : x
  2. Step 2: Convert to fraction form
    3,018.40/4,531.20 = 1,703.20/x
  3. Step 3: Cross multiply
    3,018.40x = 4,531.20 × 1,703.20
  4. Step 4: Simplify right side
    3,018.40x = 7,717,539.84
  5. Step 5: Solve for x
    x = 7,717,539.84/3,018.40
  6. Step 6: Final answer
    x = 2,556.83

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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.