Home / 2,756.34-3,805.23-2,125.49

Finding the Fourth Proportional to 2,756.34, 3,805.23 and 2,125.49

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Solution

The fourth proportional to 2,756.34, 3,805.23 and 2,125.49 is: 2,934.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.34 : 3,805.23 = 2,125.49 : x
  2. Step 2: Convert to fraction form
    2,756.34/3,805.23 = 2,125.49/x
  3. Step 3: Cross multiply
    2,756.34x = 3,805.23 × 2,125.49
  4. Step 4: Simplify right side
    2,756.34x = 8,087,978.31
  5. Step 5: Solve for x
    x = 8,087,978.31/2,756.34
  6. Step 6: Final answer
    x = 2,934.32

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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.