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Finding the Fourth Proportional to 2,425.40, 3,632.02 and 1,939.40

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Solution

The fourth proportional to 2,425.40, 3,632.02 and 1,939.40 is: 2,904.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,425.40 : 3,632.02 = 1,939.40 : x
  2. Step 2: Convert to fraction form
    2,425.40/3,632.02 = 1,939.40/x
  3. Step 3: Cross multiply
    2,425.40x = 3,632.02 × 1,939.40
  4. Step 4: Simplify right side
    2,425.40x = 7,043,939.59
  5. Step 5: Solve for x
    x = 7,043,939.59/2,425.40
  6. Step 6: Final answer
    x = 2,904.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.