Home / 1,619.11-2,233.47-1,122.04

Finding the Fourth Proportional to 1,619.11, 2,233.47 and 1,122.04

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Solution

The fourth proportional to 1,619.11, 2,233.47 and 1,122.04 is: 1,547.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.11 : 2,233.47 = 1,122.04 : x
  2. Step 2: Convert to fraction form
    1,619.11/2,233.47 = 1,122.04/x
  3. Step 3: Cross multiply
    1,619.11x = 2,233.47 × 1,122.04
  4. Step 4: Simplify right side
    1,619.11x = 2,506,042.68
  5. Step 5: Solve for x
    x = 2,506,042.68/1,619.11
  6. Step 6: Final answer
    x = 1,547.79

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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.