Home / 2,555.24-3,522.66-2,160.68

Finding the Fourth Proportional to 2,555.24, 3,522.66 and 2,160.68

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Solution

The fourth proportional to 2,555.24, 3,522.66 and 2,160.68 is: 2,978.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555.24 : 3,522.66 = 2,160.68 : x
  2. Step 2: Convert to fraction form
    2,555.24/3,522.66 = 2,160.68/x
  3. Step 3: Cross multiply
    2,555.24x = 3,522.66 × 2,160.68
  4. Step 4: Simplify right side
    2,555.24x = 7,611,341.01
  5. Step 5: Solve for x
    x = 7,611,341.01/2,555.24
  6. Step 6: Final answer
    x = 2,978.72

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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.