Home / 3,125.07-4,313.30-2,130.75

Finding the Fourth Proportional to 3,125.07, 4,313.30 and 2,130.75

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Solution

The fourth proportional to 3,125.07, 4,313.30 and 2,130.75 is: 2,940.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.07 : 4,313.30 = 2,130.75 : x
  2. Step 2: Convert to fraction form
    3,125.07/4,313.30 = 2,130.75/x
  3. Step 3: Cross multiply
    3,125.07x = 4,313.30 × 2,130.75
  4. Step 4: Simplify right side
    3,125.07x = 9,190,553.32
  5. Step 5: Solve for x
    x = 9,190,553.32/3,125.07
  6. Step 6: Final answer
    x = 2,940.91

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1.5x scale

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.