Home / 1,555.24-2,147.94-1,537.96

Finding the Fourth Proportional to 1,555.24, 2,147.94 and 1,537.96

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Solution

The fourth proportional to 1,555.24, 2,147.94 and 1,537.96 is: 2,124.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.24 : 2,147.94 = 1,537.96 : x
  2. Step 2: Convert to fraction form
    1,555.24/2,147.94 = 1,537.96/x
  3. Step 3: Cross multiply
    1,555.24x = 2,147.94 × 1,537.96
  4. Step 4: Simplify right side
    1,555.24x = 3,303,445.80
  5. Step 5: Solve for x
    x = 3,303,445.80/1,555.24
  6. Step 6: Final answer
    x = 2,124.07

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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.