Home / 2,655.65-3,975.69-1,862.26

Finding the Fourth Proportional to 2,655.65, 3,975.69 and 1,862.26

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Solution

The fourth proportional to 2,655.65, 3,975.69 and 1,862.26 is: 2,787.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.65 : 3,975.69 = 1,862.26 : x
  2. Step 2: Convert to fraction form
    2,655.65/3,975.69 = 1,862.26/x
  3. Step 3: Cross multiply
    2,655.65x = 3,975.69 × 1,862.26
  4. Step 4: Simplify right side
    2,655.65x = 7,403,749.21
  5. Step 5: Solve for x
    x = 7,403,749.21/2,655.65
  6. Step 6: Final answer
    x = 2,787.92

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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.