Home / 2,925.71-4,389.38-1,628.09

Finding the Fourth Proportional to 2,925.71, 4,389.38 and 1,628.09

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Solution

The fourth proportional to 2,925.71, 4,389.38 and 1,628.09 is: 2,442.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.71 : 4,389.38 = 1,628.09 : x
  2. Step 2: Convert to fraction form
    2,925.71/4,389.38 = 1,628.09/x
  3. Step 3: Cross multiply
    2,925.71x = 4,389.38 × 1,628.09
  4. Step 4: Simplify right side
    2,925.71x = 7,146,305.68
  5. Step 5: Solve for x
    x = 7,146,305.68/2,925.71
  6. Step 6: Final answer
    x = 2,442.59

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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.