Home / 2,155,165.14-2,968,659.81-1,644,981.78

Finding the Fourth Proportional to 2,155,165.14, 2,968,659.81 and 1,644,981.78

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Solution

The fourth proportional to 2,155,165.14, 2,968,659.81 and 1,644,981.78 is: 2,265,901.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,165.14 : 2,968,659.81 = 1,644,981.78 : x
  2. Step 2: Convert to fraction form
    2,155,165.14/2,968,659.81 = 1,644,981.78/x
  3. Step 3: Cross multiply
    2,155,165.14x = 2,968,659.81 × 1,644,981.78
  4. Step 4: Simplify right side
    2,155,165.14x = 4,883,391,298,468.26
  5. Step 5: Solve for x
    x = 4,883,391,298,468.26/2,155,165.14
  6. Step 6: Final answer
    x = 2,265,901.21

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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.