Home / 2,120.22-2,925.63-1,176.00

Finding the Fourth Proportional to 2,120.22, 2,925.63 and 1,176.00

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Solution

The fourth proportional to 2,120.22, 2,925.63 and 1,176.00 is: 1,622.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.22 : 2,925.63 = 1,176.00 : x
  2. Step 2: Convert to fraction form
    2,120.22/2,925.63 = 1,176.00/x
  3. Step 3: Cross multiply
    2,120.22x = 2,925.63 × 1,176.00
  4. Step 4: Simplify right side
    2,120.22x = 3,440,551.85
  5. Step 5: Solve for x
    x = 3,440,551.85/2,120.22
  6. Step 6: Final answer
    x = 1,622.73

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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.