Home / 1,813.39-2,720.60-936.53

Finding the Fourth Proportional to 1,813.39, 2,720.60 and 936.53

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Solution

The fourth proportional to 1,813.39, 2,720.60 and 936.53 is: 1,405.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.39 : 2,720.60 = 936.53 : x
  2. Step 2: Convert to fraction form
    1,813.39/2,720.60 = 936.53/x
  3. Step 3: Cross multiply
    1,813.39x = 2,720.60 × 936.53
  4. Step 4: Simplify right side
    1,813.39x = 2,547,923.52
  5. Step 5: Solve for x
    x = 2,547,923.52/1,813.39
  6. Step 6: Final answer
    x = 1,405.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.