Home / 3,127.06-4,315.92-2,009.40

Finding the Fourth Proportional to 3,127.06, 4,315.92 and 2,009.40

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Solution

The fourth proportional to 3,127.06, 4,315.92 and 2,009.40 is: 2,773.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.06 : 4,315.92 = 2,009.40 : x
  2. Step 2: Convert to fraction form
    3,127.06/4,315.92 = 2,009.40/x
  3. Step 3: Cross multiply
    3,127.06x = 4,315.92 × 2,009.40
  4. Step 4: Simplify right side
    3,127.06x = 8,672,401.00
  5. Step 5: Solve for x
    x = 8,672,401.00/3,127.06
  6. Step 6: Final answer
    x = 2,773.34

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1.5x scale

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.