Home / 2,425.90-3,348.09-1,378.06

Finding the Fourth Proportional to 2,425.90, 3,348.09 and 1,378.06

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Solution

The fourth proportional to 2,425.90, 3,348.09 and 1,378.06 is: 1,901.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,425.90 : 3,348.09 = 1,378.06 : x
  2. Step 2: Convert to fraction form
    2,425.90/3,348.09 = 1,378.06/x
  3. Step 3: Cross multiply
    2,425.90x = 3,348.09 × 1,378.06
  4. Step 4: Simplify right side
    2,425.90x = 4,613,868.91
  5. Step 5: Solve for x
    x = 4,613,868.91/2,425.90
  6. Step 6: Final answer
    x = 1,901.92

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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.