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Finding the Fourth Proportional to 1,676.58, 2,313.99 and 1,047.39

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Solution

The fourth proportional to 1,676.58, 2,313.99 and 1,047.39 is: 1,445.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676.58 : 2,313.99 = 1,047.39 : x
  2. Step 2: Convert to fraction form
    1,676.58/2,313.99 = 1,047.39/x
  3. Step 3: Cross multiply
    1,676.58x = 2,313.99 × 1,047.39
  4. Step 4: Simplify right side
    1,676.58x = 2,423,649.99
  5. Step 5: Solve for x
    x = 2,423,649.99/1,676.58
  6. Step 6: Final answer
    x = 1,445.59

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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.