Home / 2,103,257.70-3,154,886.55-1,978,841.70

Finding the Fourth Proportional to 2,103,257.70, 3,154,886.55 and 1,978,841.70

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Solution

The fourth proportional to 2,103,257.70, 3,154,886.55 and 1,978,841.70 is: 2,968,262.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103,257.70 : 3,154,886.55 = 1,978,841.70 : x
  2. Step 2: Convert to fraction form
    2,103,257.70/3,154,886.55 = 1,978,841.70/x
  3. Step 3: Cross multiply
    2,103,257.70x = 3,154,886.55 × 1,978,841.70
  4. Step 4: Simplify right side
    2,103,257.70x = 6,243,021,063,909.14
  5. Step 5: Solve for x
    x = 6,243,021,063,909.14/2,103,257.70
  6. Step 6: Final answer
    x = 2,968,262.55

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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.