Home / 2,918.48-4,356.94-2,815.97

Finding the Fourth Proportional to 2,918.48, 4,356.94 and 2,815.97

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Solution

The fourth proportional to 2,918.48, 4,356.94 and 2,815.97 is: 4,203.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.48 : 4,356.94 = 2,815.97 : x
  2. Step 2: Convert to fraction form
    2,918.48/4,356.94 = 2,815.97/x
  3. Step 3: Cross multiply
    2,918.48x = 4,356.94 × 2,815.97
  4. Step 4: Simplify right side
    2,918.48x = 12,268,988.79
  5. Step 5: Solve for x
    x = 12,268,988.79/2,918.48
  6. Step 6: Final answer
    x = 4,203.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.