Home / 1,555.86-2,326.88-1,383.72

Finding the Fourth Proportional to 1,555.86, 2,326.88 and 1,383.72

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Solution

The fourth proportional to 1,555.86, 2,326.88 and 1,383.72 is: 2,069.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.86 : 2,326.88 = 1,383.72 : x
  2. Step 2: Convert to fraction form
    1,555.86/2,326.88 = 1,383.72/x
  3. Step 3: Cross multiply
    1,555.86x = 2,326.88 × 1,383.72
  4. Step 4: Simplify right side
    1,555.86x = 3,219,750.39
  5. Step 5: Solve for x
    x = 3,219,750.39/1,555.86
  6. Step 6: Final answer
    x = 2,069.43

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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.