Home / 2,128,213.04-2,936,909.79-1,161,359.78

Finding the Fourth Proportional to 2,128,213.04, 2,936,909.79 and 1,161,359.78

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Solution

The fourth proportional to 2,128,213.04, 2,936,909.79 and 1,161,359.78 is: 1,602,663.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,213.04 : 2,936,909.79 = 1,161,359.78 : x
  2. Step 2: Convert to fraction form
    2,128,213.04/2,936,909.79 = 1,161,359.78/x
  3. Step 3: Cross multiply
    2,128,213.04x = 2,936,909.79 × 1,161,359.78
  4. Step 4: Simplify right side
    2,128,213.04x = 3,410,808,892,909.70
  5. Step 5: Solve for x
    x = 3,410,808,892,909.70/2,128,213.04
  6. Step 6: Final answer
    x = 1,602,663.28

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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.