Home / 1,623.57-2,436.05-649.41

Finding the Fourth Proportional to 1,623.57, 2,436.05 and 649.41

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Solution

The fourth proportional to 1,623.57, 2,436.05 and 649.41 is: 974.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.57 : 2,436.05 = 649.41 : x
  2. Step 2: Convert to fraction form
    1,623.57/2,436.05 = 649.41/x
  3. Step 3: Cross multiply
    1,623.57x = 2,436.05 × 649.41
  4. Step 4: Simplify right side
    1,623.57x = 1,581,995.23
  5. Step 5: Solve for x
    x = 1,581,995.23/1,623.57
  6. Step 6: Final answer
    x = 974.39

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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.