Home / 2,114.83-2,918.64-1,275.54

Finding the Fourth Proportional to 2,114.83, 2,918.64 and 1,275.54

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Solution

The fourth proportional to 2,114.83, 2,918.64 and 1,275.54 is: 1,760.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.83 : 2,918.64 = 1,275.54 : x
  2. Step 2: Convert to fraction form
    2,114.83/2,918.64 = 1,275.54/x
  3. Step 3: Cross multiply
    2,114.83x = 2,918.64 × 1,275.54
  4. Step 4: Simplify right side
    2,114.83x = 3,722,842.07
  5. Step 5: Solve for x
    x = 3,722,842.07/2,114.83
  6. Step 6: Final answer
    x = 1,760.35

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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.