Home / 1,125.16-1,676.24-1,072.96

Finding the Fourth Proportional to 1,125.16, 1,676.24 and 1,072.96

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Solution

The fourth proportional to 1,125.16, 1,676.24 and 1,072.96 is: 1,598.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125.16 : 1,676.24 = 1,072.96 : x
  2. Step 2: Convert to fraction form
    1,125.16/1,676.24 = 1,072.96/x
  3. Step 3: Cross multiply
    1,125.16x = 1,676.24 × 1,072.96
  4. Step 4: Simplify right side
    1,125.16x = 1,798,538.47
  5. Step 5: Solve for x
    x = 1,798,538.47/1,125.16
  6. Step 6: Final answer
    x = 1,598.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.