Home / 3,862,786.84-5,330,541.82-2,120,457.40

Finding the Fourth Proportional to 3,862,786.84, 5,330,541.82 and 2,120,457.40

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Solution

The fourth proportional to 3,862,786.84, 5,330,541.82 and 2,120,457.40 is: 2,926,174.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862,786.84 : 5,330,541.82 = 2,120,457.40 : x
  2. Step 2: Convert to fraction form
    3,862,786.84/5,330,541.82 = 2,120,457.40/x
  3. Step 3: Cross multiply
    3,862,786.84x = 5,330,541.82 × 2,120,457.40
  4. Step 4: Simplify right side
    3,862,786.84x = 11,303,186,848,228.47
  5. Step 5: Solve for x
    x = 11,303,186,848,228.47/3,862,786.84
  6. Step 6: Final answer
    x = 2,926,174.11

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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.