Home / 2,124.14-2,931.29-1,179.93

Finding the Fourth Proportional to 2,124.14, 2,931.29 and 1,179.93

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Solution

The fourth proportional to 2,124.14, 2,931.29 and 1,179.93 is: 1,628.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.14 : 2,931.29 = 1,179.93 : x
  2. Step 2: Convert to fraction form
    2,124.14/2,931.29 = 1,179.93/x
  3. Step 3: Cross multiply
    2,124.14x = 2,931.29 × 1,179.93
  4. Step 4: Simplify right side
    2,124.14x = 3,458,711.11
  5. Step 5: Solve for x
    x = 3,458,711.11/2,124.14
  6. Step 6: Final answer
    x = 1,628.29

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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.