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Finding the Fourth Proportional to 2,175.68, 3,000.51 and 1,755.90

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Solution

The fourth proportional to 2,175.68, 3,000.51 and 1,755.90 is: 2,421.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.68 : 3,000.51 = 1,755.90 : x
  2. Step 2: Convert to fraction form
    2,175.68/3,000.51 = 1,755.90/x
  3. Step 3: Cross multiply
    2,175.68x = 3,000.51 × 1,755.90
  4. Step 4: Simplify right side
    2,175.68x = 5,268,595.51
  5. Step 5: Solve for x
    x = 5,268,595.51/2,175.68
  6. Step 6: Final answer
    x = 2,421.59

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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.