Home / 2,700.12-3,726.50-1,638.06

Finding the Fourth Proportional to 2,700.12, 3,726.50 and 1,638.06

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Solution

The fourth proportional to 2,700.12, 3,726.50 and 1,638.06 is: 2,260.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,700.12 : 3,726.50 = 1,638.06 : x
  2. Step 2: Convert to fraction form
    2,700.12/3,726.50 = 1,638.06/x
  3. Step 3: Cross multiply
    2,700.12x = 3,726.50 × 1,638.06
  4. Step 4: Simplify right side
    2,700.12x = 6,104,222.40
  5. Step 5: Solve for x
    x = 6,104,222.40/2,700.12
  6. Step 6: Final answer
    x = 2,260.72

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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.