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Finding the Fourth Proportional to 3,484.19, 4,808.19 and 1,992.40

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Solution

The fourth proportional to 3,484.19, 4,808.19 and 1,992.40 is: 2,749.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,484.19 : 4,808.19 = 1,992.40 : x
  2. Step 2: Convert to fraction form
    3,484.19/4,808.19 = 1,992.40/x
  3. Step 3: Cross multiply
    3,484.19x = 4,808.19 × 1,992.40
  4. Step 4: Simplify right side
    3,484.19x = 9,579,816.40
  5. Step 5: Solve for x
    x = 9,579,816.40/3,484.19
  6. Step 6: Final answer
    x = 2,749.51

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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.