Home / 3,133.98-4,324.32-1,807.20

Finding the Fourth Proportional to 3,133.98, 4,324.32 and 1,807.20

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Solution

The fourth proportional to 3,133.98, 4,324.32 and 1,807.20 is: 2,493.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.98 : 4,324.32 = 1,807.20 : x
  2. Step 2: Convert to fraction form
    3,133.98/4,324.32 = 1,807.20/x
  3. Step 3: Cross multiply
    3,133.98x = 4,324.32 × 1,807.20
  4. Step 4: Simplify right side
    3,133.98x = 7,814,911.10
  5. Step 5: Solve for x
    x = 7,814,911.10/3,133.98
  6. Step 6: Final answer
    x = 2,493.61

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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.