Home / 2,129,915.66-2,939,662.43-1,258,713.27

Finding the Fourth Proportional to 2,129,915.66, 2,939,662.43 and 1,258,713.27

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Solution

The fourth proportional to 2,129,915.66, 2,939,662.43 and 1,258,713.27 is: 1,737,248.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,915.66 : 2,939,662.43 = 1,258,713.27 : x
  2. Step 2: Convert to fraction form
    2,129,915.66/2,939,662.43 = 1,258,713.27/x
  3. Step 3: Cross multiply
    2,129,915.66x = 2,939,662.43 × 1,258,713.27
  4. Step 4: Simplify right side
    2,129,915.66x = 3,700,192,108,388.06
  5. Step 5: Solve for x
    x = 3,700,192,108,388.06/2,129,915.66
  6. Step 6: Final answer
    x = 1,737,248.19

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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.