Home / 2,859.46-4,290.62-1,398.58

Finding the Fourth Proportional to 2,859.46, 4,290.62 and 1,398.58

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Solution

The fourth proportional to 2,859.46, 4,290.62 and 1,398.58 is: 2,098.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.46 : 4,290.62 = 1,398.58 : x
  2. Step 2: Convert to fraction form
    2,859.46/4,290.62 = 1,398.58/x
  3. Step 3: Cross multiply
    2,859.46x = 4,290.62 × 1,398.58
  4. Step 4: Simplify right side
    2,859.46x = 6,000,775.32
  5. Step 5: Solve for x
    x = 6,000,775.32/2,859.46
  6. Step 6: Final answer
    x = 2,098.57

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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.