Home / 2,130,905.81-3,196,336.82-1,231,775.43

Finding the Fourth Proportional to 2,130,905.81, 3,196,336.82 and 1,231,775.43

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Solution

The fourth proportional to 2,130,905.81, 3,196,336.82 and 1,231,775.43 is: 1,847,650.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130,905.81 : 3,196,336.82 = 1,231,775.43 : x
  2. Step 2: Convert to fraction form
    2,130,905.81/3,196,336.82 = 1,231,775.43/x
  3. Step 3: Cross multiply
    2,130,905.81x = 3,196,336.82 × 1,231,775.43
  4. Step 4: Simplify right side
    2,130,905.81x = 3,937,169,154,721.46
  5. Step 5: Solve for x
    x = 3,937,169,154,721.46/2,130,905.81
  6. Step 6: Final answer
    x = 1,847,650.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.