Home / 2,640,901.86-3,642,955.16-1,538,203.30

Finding the Fourth Proportional to 2,640,901.86, 3,642,955.16 and 1,538,203.30

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Solution

The fourth proportional to 2,640,901.86, 3,642,955.16 and 1,538,203.30 is: 2,121,853.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,901.86 : 3,642,955.16 = 1,538,203.30 : x
  2. Step 2: Convert to fraction form
    2,640,901.86/3,642,955.16 = 1,538,203.30/x
  3. Step 3: Cross multiply
    2,640,901.86x = 3,642,955.16 × 1,538,203.30
  4. Step 4: Simplify right side
    2,640,901.86x = 5,603,605,632,065.62
  5. Step 5: Solve for x
    x = 5,603,605,632,065.62/2,640,901.86
  6. Step 6: Final answer
    x = 2,121,853.04

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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.