Home / 2,870,129.64-3,960,760.50-1,580,940.12

Finding the Fourth Proportional to 2,870,129.64, 3,960,760.50 and 1,580,940.12

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Solution

The fourth proportional to 2,870,129.64, 3,960,760.50 and 1,580,940.12 is: 2,181,687.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870,129.64 : 3,960,760.50 = 1,580,940.12 : x
  2. Step 2: Convert to fraction form
    2,870,129.64/3,960,760.50 = 1,580,940.12/x
  3. Step 3: Cross multiply
    2,870,129.64x = 3,960,760.50 × 1,580,940.12
  4. Step 4: Simplify right side
    2,870,129.64x = 6,261,725,180,161.26
  5. Step 5: Solve for x
    x = 6,261,725,180,161.26/2,870,129.64
  6. Step 6: Final answer
    x = 2,181,687.23

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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.