Home / 3,127.15-4,686.72-1,371.67

Finding the Fourth Proportional to 3,127.15, 4,686.72 and 1,371.67

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Solution

The fourth proportional to 3,127.15, 4,686.72 and 1,371.67 is: 2,055.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.15 : 4,686.72 = 1,371.67 : x
  2. Step 2: Convert to fraction form
    3,127.15/4,686.72 = 1,371.67/x
  3. Step 3: Cross multiply
    3,127.15x = 4,686.72 × 1,371.67
  4. Step 4: Simplify right side
    3,127.15x = 6,428,633.22
  5. Step 5: Solve for x
    x = 6,428,633.22/3,127.15
  6. Step 6: Final answer
    x = 2,055.75

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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.