Home / 2,205.16-3,036.18-1,929.16

Finding the Fourth Proportional to 2,205.16, 3,036.18 and 1,929.16

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Solution

The fourth proportional to 2,205.16, 3,036.18 and 1,929.16 is: 2,656.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.16 : 3,036.18 = 1,929.16 : x
  2. Step 2: Convert to fraction form
    2,205.16/3,036.18 = 1,929.16/x
  3. Step 3: Cross multiply
    2,205.16x = 3,036.18 × 1,929.16
  4. Step 4: Simplify right side
    2,205.16x = 5,857,277.01
  5. Step 5: Solve for x
    x = 5,857,277.01/2,205.16
  6. Step 6: Final answer
    x = 2,656.17

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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.