Home / 1,754.48-2,631.50-780.36

Finding the Fourth Proportional to 1,754.48, 2,631.50 and 780.36

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Solution

The fourth proportional to 1,754.48, 2,631.50 and 780.36 is: 1,170.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754.48 : 2,631.50 = 780.36 : x
  2. Step 2: Convert to fraction form
    1,754.48/2,631.50 = 780.36/x
  3. Step 3: Cross multiply
    1,754.48x = 2,631.50 × 780.36
  4. Step 4: Simplify right side
    1,754.48x = 2,053,517.34
  5. Step 5: Solve for x
    x = 2,053,517.34/1,754.48
  6. Step 6: Final answer
    x = 1,170.44

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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.