Home / 3,176.99-4,384.65-1,918.76

Finding the Fourth Proportional to 3,176.99, 4,384.65 and 1,918.76

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Solution

The fourth proportional to 3,176.99, 4,384.65 and 1,918.76 is: 2,648.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.99 : 4,384.65 = 1,918.76 : x
  2. Step 2: Convert to fraction form
    3,176.99/4,384.65 = 1,918.76/x
  3. Step 3: Cross multiply
    3,176.99x = 4,384.65 × 1,918.76
  4. Step 4: Simplify right side
    3,176.99x = 8,413,076.31
  5. Step 5: Solve for x
    x = 8,413,076.31/3,176.99
  6. Step 6: Final answer
    x = 2,648.13

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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.