Home / 2,113.55-3,170.36-880.66

Finding the Fourth Proportional to 2,113.55, 3,170.36 and 880.66

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Solution

The fourth proportional to 2,113.55, 3,170.36 and 880.66 is: 1,321.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.55 : 3,170.36 = 880.66 : x
  2. Step 2: Convert to fraction form
    2,113.55/3,170.36 = 880.66/x
  3. Step 3: Cross multiply
    2,113.55x = 3,170.36 × 880.66
  4. Step 4: Simplify right side
    2,113.55x = 2,792,009.24
  5. Step 5: Solve for x
    x = 2,792,009.24/2,113.55
  6. Step 6: Final answer
    x = 1,321.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.