Home / 1,555.37-2,321.66-1,370.84

Finding the Fourth Proportional to 1,555.37, 2,321.66 and 1,370.84

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Solution

The fourth proportional to 1,555.37, 2,321.66 and 1,370.84 is: 2,046.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.37 : 2,321.66 = 1,370.84 : x
  2. Step 2: Convert to fraction form
    1,555.37/2,321.66 = 1,370.84/x
  3. Step 3: Cross multiply
    1,555.37x = 2,321.66 × 1,370.84
  4. Step 4: Simplify right side
    1,555.37x = 3,182,605.93
  5. Step 5: Solve for x
    x = 3,182,605.93/1,555.37
  6. Step 6: Final answer
    x = 2,046.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.