Home / 2,623.40-3,929.88-1,583.68

Finding the Fourth Proportional to 2,623.40, 3,929.88 and 1,583.68

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Solution

The fourth proportional to 2,623.40, 3,929.88 and 1,583.68 is: 2,372.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,623.40 : 3,929.88 = 1,583.68 : x
  2. Step 2: Convert to fraction form
    2,623.40/3,929.88 = 1,583.68/x
  3. Step 3: Cross multiply
    2,623.40x = 3,929.88 × 1,583.68
  4. Step 4: Simplify right side
    2,623.40x = 6,223,672.36
  5. Step 5: Solve for x
    x = 6,223,672.36/2,623.40
  6. Step 6: Final answer
    x = 2,372.37

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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.