Home / 2,890,396.95-3,988,457.13-1,600,996.43

Finding the Fourth Proportional to 2,890,396.95, 3,988,457.13 and 1,600,996.43

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Solution

The fourth proportional to 2,890,396.95, 3,988,457.13 and 1,600,996.43 is: 2,209,214.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890,396.95 : 3,988,457.13 = 1,600,996.43 : x
  2. Step 2: Convert to fraction form
    2,890,396.95/3,988,457.13 = 1,600,996.43/x
  3. Step 3: Cross multiply
    2,890,396.95x = 3,988,457.13 × 1,600,996.43
  4. Step 4: Simplify right side
    2,890,396.95x = 6,385,505,606,395.76
  5. Step 5: Solve for x
    x = 6,385,505,606,395.76/2,890,396.95
  6. Step 6: Final answer
    x = 2,209,214.07

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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.