Home / 2,124.36-2,930.58-1,239.57

Finding the Fourth Proportional to 2,124.36, 2,930.58 and 1,239.57

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Solution

The fourth proportional to 2,124.36, 2,930.58 and 1,239.57 is: 1,710.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.36 : 2,930.58 = 1,239.57 : x
  2. Step 2: Convert to fraction form
    2,124.36/2,930.58 = 1,239.57/x
  3. Step 3: Cross multiply
    2,124.36x = 2,930.58 × 1,239.57
  4. Step 4: Simplify right side
    2,124.36x = 3,632,659.05
  5. Step 5: Solve for x
    x = 3,632,659.05/2,124.36
  6. Step 6: Final answer
    x = 1,710.00

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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.