Home / 2,553.65-3,521.87-2,157.26

Finding the Fourth Proportional to 2,553.65, 3,521.87 and 2,157.26

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Solution

The fourth proportional to 2,553.65, 3,521.87 and 2,157.26 is: 2,975.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,553.65 : 3,521.87 = 2,157.26 : x
  2. Step 2: Convert to fraction form
    2,553.65/3,521.87 = 2,157.26/x
  3. Step 3: Cross multiply
    2,553.65x = 3,521.87 × 2,157.26
  4. Step 4: Simplify right side
    2,553.65x = 7,597,560.88
  5. Step 5: Solve for x
    x = 7,597,560.88/2,553.65
  6. Step 6: Final answer
    x = 2,975.18

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1.5x scale

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.