Home / 2,943.30-4,062.16-1,898.40

Finding the Fourth Proportional to 2,943.30, 4,062.16 and 1,898.40

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Solution

The fourth proportional to 2,943.30, 4,062.16 and 1,898.40 is: 2,620.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,943.30 : 4,062.16 = 1,898.40 : x
  2. Step 2: Convert to fraction form
    2,943.30/4,062.16 = 1,898.40/x
  3. Step 3: Cross multiply
    2,943.30x = 4,062.16 × 1,898.40
  4. Step 4: Simplify right side
    2,943.30x = 7,711,604.54
  5. Step 5: Solve for x
    x = 7,711,604.54/2,943.30
  6. Step 6: Final answer
    x = 2,620.05

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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.