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Finding the Fourth Proportional to 2,343, 3,233.01 and 1,990.35

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Solution

The fourth proportional to 2,343, 3,233.01 and 1,990.35 is: 2,746.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,343 : 3,233.01 = 1,990.35 : x
  2. Step 2: Convert to fraction form
    2,343/3,233.01 = 1,990.35/x
  3. Step 3: Cross multiply
    2,343x = 3,233.01 × 1,990.35
  4. Step 4: Simplify right side
    2,343x = 6,434,821.45
  5. Step 5: Solve for x
    x = 6,434,821.45/2,343
  6. Step 6: Final answer
    x = 2,746.40

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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.