Home / 2,918.57-4,373.60-1,455.71

Finding the Fourth Proportional to 2,918.57, 4,373.60 and 1,455.71

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Solution

The fourth proportional to 2,918.57, 4,373.60 and 1,455.71 is: 2,181.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.57 : 4,373.60 = 1,455.71 : x
  2. Step 2: Convert to fraction form
    2,918.57/4,373.60 = 1,455.71/x
  3. Step 3: Cross multiply
    2,918.57x = 4,373.60 × 1,455.71
  4. Step 4: Simplify right side
    2,918.57x = 6,366,664.11
  5. Step 5: Solve for x
    x = 6,366,664.11/2,918.57
  6. Step 6: Final answer
    x = 2,181.44

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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.