Home / 3,880,561.12-5,355,335.66-2,161,681.16

Finding the Fourth Proportional to 3,880,561.12, 5,355,335.66 and 2,161,681.16

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Solution

The fourth proportional to 3,880,561.12, 5,355,335.66 and 2,161,681.16 is: 2,983,209.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880,561.12 : 5,355,335.66 = 2,161,681.16 : x
  2. Step 2: Convert to fraction form
    3,880,561.12/5,355,335.66 = 2,161,681.16/x
  3. Step 3: Cross multiply
    3,880,561.12x = 5,355,335.66 × 2,161,681.16
  4. Step 4: Simplify right side
    3,880,561.12x = 11,576,528,201,698.17
  5. Step 5: Solve for x
    x = 11,576,528,201,698.17/3,880,561.12
  6. Step 6: Final answer
    x = 2,983,209.86

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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.