Home / 1,528.29-2,106.47-1,169.26

Finding the Fourth Proportional to 1,528.29, 2,106.47 and 1,169.26

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Solution

The fourth proportional to 1,528.29, 2,106.47 and 1,169.26 is: 1,611.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.29 : 2,106.47 = 1,169.26 : x
  2. Step 2: Convert to fraction form
    1,528.29/2,106.47 = 1,169.26/x
  3. Step 3: Cross multiply
    1,528.29x = 2,106.47 × 1,169.26
  4. Step 4: Simplify right side
    1,528.29x = 2,463,011.11
  5. Step 5: Solve for x
    x = 2,463,011.11/1,528.29
  6. Step 6: Final answer
    x = 1,611.61

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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.