Home / 1,675.17-2,311.88-976.59

Finding the Fourth Proportional to 1,675.17, 2,311.88 and 976.59

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Solution

The fourth proportional to 1,675.17, 2,311.88 and 976.59 is: 1,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.17 : 2,311.88 = 976.59 : x
  2. Step 2: Convert to fraction form
    1,675.17/2,311.88 = 976.59/x
  3. Step 3: Cross multiply
    1,675.17x = 2,311.88 × 976.59
  4. Step 4: Simplify right side
    1,675.17x = 2,257,754.01
  5. Step 5: Solve for x
    x = 2,257,754.01/1,675.17
  6. Step 6: Final answer
    x = 1,347.78

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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.