Home / 2,124.16-3,186.98-1,135.91

Finding the Fourth Proportional to 2,124.16, 3,186.98 and 1,135.91

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Solution

The fourth proportional to 2,124.16, 3,186.98 and 1,135.91 is: 1,704.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.16 : 3,186.98 = 1,135.91 : x
  2. Step 2: Convert to fraction form
    2,124.16/3,186.98 = 1,135.91/x
  3. Step 3: Cross multiply
    2,124.16x = 3,186.98 × 1,135.91
  4. Step 4: Simplify right side
    2,124.16x = 3,620,129.31
  5. Step 5: Solve for x
    x = 3,620,129.31/2,124.16
  6. Step 6: Final answer
    x = 1,704.26

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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.