Home / 1,771.27-2,437.75-1,415.88

Finding the Fourth Proportional to 1,771.27, 2,437.75 and 1,415.88

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Solution

The fourth proportional to 1,771.27, 2,437.75 and 1,415.88 is: 1,948.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.27 : 2,437.75 = 1,415.88 : x
  2. Step 2: Convert to fraction form
    1,771.27/2,437.75 = 1,415.88/x
  3. Step 3: Cross multiply
    1,771.27x = 2,437.75 × 1,415.88
  4. Step 4: Simplify right side
    1,771.27x = 3,451,555.28
  5. Step 5: Solve for x
    x = 3,451,555.28/1,771.27
  6. Step 6: Final answer
    x = 1,948.64

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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.