Home / 2,175.75-3,003.90-1,677.45

Finding the Fourth Proportional to 2,175.75, 3,003.90 and 1,677.45

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Solution

The fourth proportional to 2,175.75, 3,003.90 and 1,677.45 is: 2,315.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.75 : 3,003.90 = 1,677.45 : x
  2. Step 2: Convert to fraction form
    2,175.75/3,003.90 = 1,677.45/x
  3. Step 3: Cross multiply
    2,175.75x = 3,003.90 × 1,677.45
  4. Step 4: Simplify right side
    2,175.75x = 5,038,892.06
  5. Step 5: Solve for x
    x = 5,038,892.06/2,175.75
  6. Step 6: Final answer
    x = 2,315.93

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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.