Home / 2,425.77-3,348.68-1,988.37

Finding the Fourth Proportional to 2,425.77, 3,348.68 and 1,988.37

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Solution

The fourth proportional to 2,425.77, 3,348.68 and 1,988.37 is: 2,744.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,425.77 : 3,348.68 = 1,988.37 : x
  2. Step 2: Convert to fraction form
    2,425.77/3,348.68 = 1,988.37/x
  3. Step 3: Cross multiply
    2,425.77x = 3,348.68 × 1,988.37
  4. Step 4: Simplify right side
    2,425.77x = 6,658,404.91
  5. Step 5: Solve for x
    x = 6,658,404.91/2,425.77
  6. Step 6: Final answer
    x = 2,744.86

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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.