Home / 2,875,138.20-3,968,965.98-1,857,039.48

Finding the Fourth Proportional to 2,875,138.20, 3,968,965.98 and 1,857,039.48

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Solution

The fourth proportional to 2,875,138.20, 3,968,965.98 and 1,857,039.48 is: 2,563,538.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875,138.20 : 3,968,965.98 = 1,857,039.48 : x
  2. Step 2: Convert to fraction form
    2,875,138.20/3,968,965.98 = 1,857,039.48/x
  3. Step 3: Cross multiply
    2,875,138.20x = 3,968,965.98 × 1,857,039.48
  4. Step 4: Simplify right side
    2,875,138.20x = 7,370,526,519,636.89
  5. Step 5: Solve for x
    x = 7,370,526,519,636.89/2,875,138.20
  6. Step 6: Final answer
    x = 2,563,538.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.