Home / 3,810.85-5,717.18-1,345.46

Finding the Fourth Proportional to 3,810.85, 5,717.18 and 1,345.46

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Solution

The fourth proportional to 3,810.85, 5,717.18 and 1,345.46 is: 2,018.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.85 : 5,717.18 = 1,345.46 : x
  2. Step 2: Convert to fraction form
    3,810.85/5,717.18 = 1,345.46/x
  3. Step 3: Cross multiply
    3,810.85x = 5,717.18 × 1,345.46
  4. Step 4: Simplify right side
    3,810.85x = 7,692,243.94
  5. Step 5: Solve for x
    x = 7,692,243.94/3,810.85
  6. Step 6: Final answer
    x = 2,018.51

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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.