Home / 1,772.10-2,445.81-1,351.80

Finding the Fourth Proportional to 1,772.10, 2,445.81 and 1,351.80

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Solution

The fourth proportional to 1,772.10, 2,445.81 and 1,351.80 is: 1,865.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.10 : 2,445.81 = 1,351.80 : x
  2. Step 2: Convert to fraction form
    1,772.10/2,445.81 = 1,351.80/x
  3. Step 3: Cross multiply
    1,772.10x = 2,445.81 × 1,351.80
  4. Step 4: Simplify right side
    1,772.10x = 3,306,245.96
  5. Step 5: Solve for x
    x = 3,306,245.96/1,772.10
  6. Step 6: Final answer
    x = 1,865.72

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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.