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Finding the Fourth Proportional to 1,616.58, 2,425.23 and 576.63

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Solution

The fourth proportional to 1,616.58, 2,425.23 and 576.63 is: 865.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,616.58 : 2,425.23 = 576.63 : x
  2. Step 2: Convert to fraction form
    1,616.58/2,425.23 = 576.63/x
  3. Step 3: Cross multiply
    1,616.58x = 2,425.23 × 576.63
  4. Step 4: Simplify right side
    1,616.58x = 1,398,460.37
  5. Step 5: Solve for x
    x = 1,398,460.37/1,616.58
  6. Step 6: Final answer
    x = 865.07

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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.