Home / 2,913.78-4,365.63-1,818.93

Finding the Fourth Proportional to 2,913.78, 4,365.63 and 1,818.93

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Solution

The fourth proportional to 2,913.78, 4,365.63 and 1,818.93 is: 2,725.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.78 : 4,365.63 = 1,818.93 : x
  2. Step 2: Convert to fraction form
    2,913.78/4,365.63 = 1,818.93/x
  3. Step 3: Cross multiply
    2,913.78x = 4,365.63 × 1,818.93
  4. Step 4: Simplify right side
    2,913.78x = 7,940,775.38
  5. Step 5: Solve for x
    x = 7,940,775.38/2,913.78
  6. Step 6: Final answer
    x = 2,725.25

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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.