Home / 2,781,278.32-3,835,239.16-2,057,632.80

Finding the Fourth Proportional to 2,781,278.32, 3,835,239.16 and 2,057,632.80

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Solution

The fourth proportional to 2,781,278.32, 3,835,239.16 and 2,057,632.80 is: 2,837,369.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781,278.32 : 3,835,239.16 = 2,057,632.80 : x
  2. Step 2: Convert to fraction form
    2,781,278.32/3,835,239.16 = 2,057,632.80/x
  3. Step 3: Cross multiply
    2,781,278.32x = 3,835,239.16 × 2,057,632.80
  4. Step 4: Simplify right side
    2,781,278.32x = 7,891,513,891,460.45
  5. Step 5: Solve for x
    x = 7,891,513,891,460.45/2,781,278.32
  6. Step 6: Final answer
    x = 2,837,369.36

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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.