Home / 2,091.84-2,886.66-1,160.40

Finding the Fourth Proportional to 2,091.84, 2,886.66 and 1,160.40

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Solution

The fourth proportional to 2,091.84, 2,886.66 and 1,160.40 is: 1,601.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.84 : 2,886.66 = 1,160.40 : x
  2. Step 2: Convert to fraction form
    2,091.84/2,886.66 = 1,160.40/x
  3. Step 3: Cross multiply
    2,091.84x = 2,886.66 × 1,160.40
  4. Step 4: Simplify right side
    2,091.84x = 3,349,680.26
  5. Step 5: Solve for x
    x = 3,349,680.26/2,091.84
  6. Step 6: Final answer
    x = 1,601.31

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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.