Home / 3,577.92-5,365.20-1,386.72

Finding the Fourth Proportional to 3,577.92, 5,365.20 and 1,386.72

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Solution

The fourth proportional to 3,577.92, 5,365.20 and 1,386.72 is: 2,079.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,577.92 : 5,365.20 = 1,386.72 : x
  2. Step 2: Convert to fraction form
    3,577.92/5,365.20 = 1,386.72/x
  3. Step 3: Cross multiply
    3,577.92x = 5,365.20 × 1,386.72
  4. Step 4: Simplify right side
    3,577.92x = 7,440,030.14
  5. Step 5: Solve for x
    x = 7,440,030.14/3,577.92
  6. Step 6: Final answer
    x = 2,079.43

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1.5x scale

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.