Home / 3,918,020.95-5,406,572.28-2,198,809.31

Finding the Fourth Proportional to 3,918,020.95, 5,406,572.28 and 2,198,809.31

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Solution

The fourth proportional to 3,918,020.95, 5,406,572.28 and 2,198,809.31 is: 3,034,190.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,020.95 : 5,406,572.28 = 2,198,809.31 : x
  2. Step 2: Convert to fraction form
    3,918,020.95/5,406,572.28 = 2,198,809.31/x
  3. Step 3: Cross multiply
    3,918,020.95x = 5,406,572.28 × 2,198,809.31
  4. Step 4: Simplify right side
    3,918,020.95x = 11,888,021,477,968.36
  5. Step 5: Solve for x
    x = 11,888,021,477,968.36/3,918,020.95
  6. Step 6: Final answer
    x = 3,034,190.38

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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.