Home / 1,835.15-2,752.40-518.99

Finding the Fourth Proportional to 1,835.15, 2,752.40 and 518.99

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Solution

The fourth proportional to 1,835.15, 2,752.40 and 518.99 is: 778.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,835.15 : 2,752.40 = 518.99 : x
  2. Step 2: Convert to fraction form
    1,835.15/2,752.40 = 518.99/x
  3. Step 3: Cross multiply
    1,835.15x = 2,752.40 × 518.99
  4. Step 4: Simplify right side
    1,835.15x = 1,428,455.61
  5. Step 5: Solve for x
    x = 1,428,455.61/1,835.15
  6. Step 6: Final answer
    x = 778.39

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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.