Home / 2,170.28-2,994.95-1,175.55

Finding the Fourth Proportional to 2,170.28, 2,994.95 and 1,175.55

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Solution

The fourth proportional to 2,170.28, 2,994.95 and 1,175.55 is: 1,622.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.28 : 2,994.95 = 1,175.55 : x
  2. Step 2: Convert to fraction form
    2,170.28/2,994.95 = 1,175.55/x
  3. Step 3: Cross multiply
    2,170.28x = 2,994.95 × 1,175.55
  4. Step 4: Simplify right side
    2,170.28x = 3,520,707.59
  5. Step 5: Solve for x
    x = 3,520,707.59/2,170.28
  6. Step 6: Final answer
    x = 1,622.24

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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.