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Finding the Fourth Proportional to 2,710.88, 3,718.51 and 2,687.48

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Solution

The fourth proportional to 2,710.88, 3,718.51 and 2,687.48 is: 3,686.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,710.88 : 3,718.51 = 2,687.48 : x
  2. Step 2: Convert to fraction form
    2,710.88/3,718.51 = 2,687.48/x
  3. Step 3: Cross multiply
    2,710.88x = 3,718.51 × 2,687.48
  4. Step 4: Simplify right side
    2,710.88x = 9,993,406.02
  5. Step 5: Solve for x
    x = 9,993,406.02/2,710.88
  6. Step 6: Final answer
    x = 3,686.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.