Home / 1,918.82-2,878.24-532.51

Finding the Fourth Proportional to 1,918.82, 2,878.24 and 532.51

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Solution

The fourth proportional to 1,918.82, 2,878.24 and 532.51 is: 798.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918.82 : 2,878.24 = 532.51 : x
  2. Step 2: Convert to fraction form
    1,918.82/2,878.24 = 532.51/x
  3. Step 3: Cross multiply
    1,918.82x = 2,878.24 × 532.51
  4. Step 4: Simplify right side
    1,918.82x = 1,532,688.45
  5. Step 5: Solve for x
    x = 1,532,688.45/1,918.82
  6. Step 6: Final answer
    x = 798.76

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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.