Home / 2,974.79-4,105.23-1,648.58

Finding the Fourth Proportional to 2,974.79, 4,105.23 and 1,648.58

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Solution

The fourth proportional to 2,974.79, 4,105.23 and 1,648.58 is: 2,275.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.79 : 4,105.23 = 1,648.58 : x
  2. Step 2: Convert to fraction form
    2,974.79/4,105.23 = 1,648.58/x
  3. Step 3: Cross multiply
    2,974.79x = 4,105.23 × 1,648.58
  4. Step 4: Simplify right side
    2,974.79x = 6,767,800.07
  5. Step 5: Solve for x
    x = 6,767,800.07/2,974.79
  6. Step 6: Final answer
    x = 2,275.05

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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.