Home / 2,916.30-4,365.80-2,628.30

Finding the Fourth Proportional to 2,916.30, 4,365.80 and 2,628.30

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Solution

The fourth proportional to 2,916.30, 4,365.80 and 2,628.30 is: 3,934.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.30 : 4,365.80 = 2,628.30 : x
  2. Step 2: Convert to fraction form
    2,916.30/4,365.80 = 2,628.30/x
  3. Step 3: Cross multiply
    2,916.30x = 4,365.80 × 2,628.30
  4. Step 4: Simplify right side
    2,916.30x = 11,474,632.14
  5. Step 5: Solve for x
    x = 11,474,632.14/2,916.30
  6. Step 6: Final answer
    x = 3,934.65

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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.