Home / 1,873.97-2,586.17-1,128.16

Finding the Fourth Proportional to 1,873.97, 2,586.17 and 1,128.16

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Solution

The fourth proportional to 1,873.97, 2,586.17 and 1,128.16 is: 1,556.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873.97 : 2,586.17 = 1,128.16 : x
  2. Step 2: Convert to fraction form
    1,873.97/2,586.17 = 1,128.16/x
  3. Step 3: Cross multiply
    1,873.97x = 2,586.17 × 1,128.16
  4. Step 4: Simplify right side
    1,873.97x = 2,917,613.55
  5. Step 5: Solve for x
    x = 2,917,613.55/1,873.97
  6. Step 6: Final answer
    x = 1,556.92

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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.