Home / 2,124.13-3,186.16-1,156.38

Finding the Fourth Proportional to 2,124.13, 3,186.16 and 1,156.38

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Solution

The fourth proportional to 2,124.13, 3,186.16 and 1,156.38 is: 1,734.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.13 : 3,186.16 = 1,156.38 : x
  2. Step 2: Convert to fraction form
    2,124.13/3,186.16 = 1,156.38/x
  3. Step 3: Cross multiply
    2,124.13x = 3,186.16 × 1,156.38
  4. Step 4: Simplify right side
    2,124.13x = 3,684,408.81
  5. Step 5: Solve for x
    x = 3,684,408.81/2,124.13
  6. Step 6: Final answer
    x = 1,734.55

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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.