Home / 2,128.66-2,937.60-1,184.51

Finding the Fourth Proportional to 2,128.66, 2,937.60 and 1,184.51

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Solution

The fourth proportional to 2,128.66, 2,937.60 and 1,184.51 is: 1,634.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128.66 : 2,937.60 = 1,184.51 : x
  2. Step 2: Convert to fraction form
    2,128.66/2,937.60 = 1,184.51/x
  3. Step 3: Cross multiply
    2,128.66x = 2,937.60 × 1,184.51
  4. Step 4: Simplify right side
    2,128.66x = 3,479,616.58
  5. Step 5: Solve for x
    x = 3,479,616.58/2,128.66
  6. Step 6: Final answer
    x = 1,634.66

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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.